See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/359002727 History of Science and Technology in Tamil Nadu through the Ages OF SCIENCE AND TECHNOLOGY IN TAMIL NADU THROUGH THE AGES Contents xv Chapter · March 2022 CITATIONS READS 0 2,081 1 author: Marimuthu K Bharathidasan University 9 PUBLICATIONS 0 CITATIONS SEE PROFILE All content following this page was uploaded by Marimuthu K on 04 March 2022. The user has requested enhancement of the downloaded file. RESEARCH PUBLISHING History of Science and Technology in Tamil Nadu through the Ages Edited by S. Swaminathan RESEARCH PUBLISHING Published by Research Publishing No: 83 Genting Lane, #08-01, Genting Building, S349568 SINGAPORE. e-mail: editorial@rpsonline.com.sg India Office: New No: 61/1 First Cross Street, CIT Nagar, Chennai 600035. HISTORY OF SCIENCE AND TECHNOLOGY IN TAMIL NADU THROUGH THE AGES Edited by S. Swaminathan Copyright © 2013 by Research Publishing Services. All rights reserved. This book, or parts thereof, may not be reproduced in any form or by any means, electronic or mechanical, including photocopying, recording or any information storage and retrieval system now known or to be invented, without written permission from the Organizers or the Publisher. Disclaimer: No responsibility is assumed by the Editor/Publisher for any injury and/or damage to per­ sons or property as a matter of products liability, negligence or otherwise, or from any use or operation of any methods, products or ideas contained in the material herein. Contents, used in the papers are how it is submitted and approved by the Editor after changes in the formatting. Whilst every attempt made to ensure that all aspects of the papers are uniform in style, the Publisher or the Editor(s) will not be responsible whatsoever for the accuracy, correctness or representations of any statements or documents presented in the papers. ISBN 13: 978-981-07-1409-3 ISBN 10: 981-07-1409-2 Design, Typeset & Printed by iTEK CMS Web Solutions, e-mail: enquiries@itekcms.com Printed in Singapore. Contents Chapter 16 History of Science and Technology in Colonial Tamil Nadu 1857-1947 xv 111 S. Swaminathan Chapter 17 Two Significant Landmarks in the Colonial Space Science 121 T. Asokan Chapter 18 History and Operation of Nilgiris Mountain Railway (NMR) 130 R. Shangameswaran Chapter 19 Navigation and Shipbuilding Technology in the Coromandel Coast with Special Reference to Dutch East India Company (VOC) 133 S. Ravichandran Chapter 20 Lighthouses in Madras Presidency: A Brief History 141 K. Marimuthu Chapter 21 Methodical Study of Indian Flora and Fauna Under Colonial Period 163 P. J. Biju Joseph Chapter 22 History of Science: Perspective of a Historian 170 N. Rajendran Chapter 23 Impact of Science and Technology on Women in Colonial Tamil Nadu 177 K. Mahalakshmi Chapter 24 Biography of Indian Women Scientists, Technologists and their Achievements 183 V. Kalpana Devi Chapter 25 Dr. Muthulakshmi Reddi: Health and Medical Services G. Gowri 190 Chapter 20 Lighthouses in Madras Presidency: A Brief History K. Marimuthu Doctoral Research Scholar, Department of History, Bharathidasan University, Druchirappalli HISTORY OF LIGHTHOUSES A Lighthouse is a tower, building, or other type of structure designed to emit light from a system of lamps and lenses or, in older times, from a fire, and used as an aid for navigation pilots at sea or on inland waterways. Lighthouses are used to mark dangerous coastlines, hazardous shores and reefs, and safe entries to harbors, and can also assist in aerial naviga­ tion. Once widely used, the number of operational lighthouses has declined due to the expense of maintenance and replacement by modern electronic navigational aids. Lighthouses have always had two principal functions: to warn of danger from a spot that sailors could see from a safe distance both night end day, and to be guides into harbors or anchorages. Lighthouses also nave become symbolic monuments of society's efforts to reduce the haz­ ards of seafaring. These structures were often constructed under precarious circumstances by skilled builders and were maintained, often at great personal risk, by dedicated keepers. TECHNOLOGY AND LIGHTHOUSES — THE LIGHT The purpose of a lighthouse's light is to provide a mariner at sea with a fixed point of reference to aid his ability to navigate in the dark when the shore or an offshore hazard cannot be seen directly. The distance at which such a light can be seen depends on the height and intensity of the light. History of Science and Technology in Tamil Nadu Editor: S. Swaminathan Copyright © 2013 by Research Publishing :: www.rpsonline.com.sg ISBN: 978-981-07-1409-3 141 142 K.Marimuthu The brighter the light and the greater its height above the sea, the farther it can be seen. Of course, when the weather is bad-with rain, snow, or fog­ visibility, it can be greatly reduced. The earliest lights were wood-burning fires. Large, visible fires required vast quantities of wood, which tended to burn quickly. During the early 1500s, coal began to be used for fires in lighthouses. Coal had the advantage of burning more slowly and brightly than wood. However, it also required more care to keep its fire bright, particularly during bad weather. Enclosing the fire with glass windows resulted in soot on the glass, which reduced the visibility of the light. Adding reflectors to increase the visibility also resulted in deposits of soot on the reflecting surfaces, which reduced their effectiveness. Candles were used in some lighthouses. Although not as bright as coal fires, candles produced less soot and ash, and were more easily con­ tained within a lantern, which kept the flame steadier. Some lighthouses used a dozen or more candles and reflectors to make the light more visi­ ble, but in bad weather, still-brighter lights were needed. Lamps burning oil were the next step in the attempt to improve the visibility of the lights. A variety of wick types were used in these lamps: flat, solid and round, and multiple wicks in a single oil reservoir (known as "spider lamps"). A lamp using a hollow, circular wick was invented by a Frenchman, Ami Argand, in 1781. The design allowed air to flow along Fresnel lenses The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design. Compared to conventional bulky lenses, the Fresnel lens is much thinner, larger, and flatter, and captures more oblique light from a light source, thus allowing lighthouses to be visible over much greater distances. Lighthouses in Madras Presidency: A Brief History 143 [fc-r- the inside and outside of the wick, which greatly enhanced the fc^ghtness of the flame. This lamp was often fitted in the center of a large >C — to 20-inch) parabolic reflector, and was widely used in England and feance. In the United States, an unemployed ship captain, Winslow Lewis, Hptented his version of the Argand lamp and parabolic reflector after ifemonstrating its superiority to the spider lamp at the Boston Light. He w — awarded a contract to install his lamp system in the nation's lightL uses, a task he completed in 1815. In 1822, the Frenchman Augustin Fresnel invented a lens that capr. - ?d and focused a much larger fraction of the light emitted by the lamps ■an did reflectors, hence producing a much brighter light. These Fresnel fesses were quickly adopted in England, France, and other European seafaring nations. LIGHTHOUSES IN THE ANCIENT WORLD The first lighthouse on record was built on the island of Pharos. Later des­ ignated one of the Seven Wonders of the ancient world, it was the only structure among these seven built for a practical purpose: guiding sailors safely into the harbor at Alexandria, Egypt. Alexander the Great founded this port city on the Mediterranean Sea in 332 B.C., and located it on the western edge of the Nile River delta to avoid the heavy silt and sediment ’oads deposited annually by the great river. Ptolemy, ruler of Egypt after Alexander's death, authorized the building of the Pharos light in 290 B.C. Alexandria served ships carrying Egyptian grain and armies to ports around the Mediterranean, and proved important to the extension and maintenance of the Roman Empire. The Pharos lighthouse was the last of the six vanished Wonders to disappear (the Great Pyramid in Egypt still exists). It stood for about 1, 500 years, finally falling victim to earthquakes in A.D. 1326. An Arab trav­ eling in 1166 described the lighthouse as follows: the lowest of three stages was a square about 183 feet high with a cylindrical core; the mid­ dle stage was octagonal with 60-foot sides and a height of about 90 feet; and the third stage was circular with a height of 24 feet.1 The total height, including the foundation, was about 384 feet. It was reported to have used fire at night and a sun-reflecting mirror during the day. The Pharos lighthouse was memorialized on Roman coins, and its name is the base for the word "lighthouse" in Spanish and Italian (faro), Portuguese (farol), and French (phare). Even in Britain before 1600, a light­ house was called a pharos. The Romans have been credited with building more than thirty light­ houses throughout their provinces, including one in Spain at Corunna, in 144 K.Marimuthu France at Boulogne (which survived until 1664), and in England alongside the harbor at Dover. After the fall of the Roman Empire, no new lighthouses were con­ structed until the end of the so-called Dark Ages, when trade among ports on the Mediterranean and beyond began to expand. The Italians built a light tower in 1157 at Meloria and at other port cities thereafter, almost all of them harbor lights. It was not until the 15th century that lighthouses began to be installed offshore to warn seamen of hazards to their vessels along routes to the port cities. Alan Stevenson estimated that the number of lighthouses worldwide grew from about 34 in 1600 to approximately 175 in 1800. MEDIEVAL LIGHTHOUSES The decline of commerce in the Dark Ages halted lighthouse construction until the revival of trade in Europe about 1100 ce. The lead in establishing new lighthouses was taken by Italy and France. By 1500, references to lighthouses became a regular feature of books of travel and charts. By 1600, at least 30 major beacons existed. These early lights were similar to those of antiquity, burning mainly wood, coal, or torches in the open, although oil lamps and candles were also used. A famous lighthouse of this period was the Lanterna of Genoa in Italy, probably established about 1139. It was rebuilt completely in 1544 as the impressive tower that remains a conspicuous seamark today. The keeper of the light in 1449 was Antonio Columbo, uncle of the Columbus who crossed the Atlantic. Another early lighthouse was built at Meloria, Italy, in 1157, which was replaced in 1304 by a lighthouse on an isolated rock at Livorno. In France the Roman tower at Boulogne was repaired by the emperor Charlemagne in 800. It lasted until 1644, when it collapsed owing to undermining of the cliff. The most famous French lighthouse of this period was one on the small island of Cordouan in the estuary of the Gironde River near Bordeaux. The original was built by Edward the Black Prince in the 14th century. In 1584 Louis de Foix, an engineer and architect, undertook the construction of a new light, which was one of the most ambitious and magnificent achievements of its day. It was 135 feet in diameter at the base and 100 feet high, with an elabo­ rate interior of vaulted rooms, richly decorated throughout with a profusion of gilt, carved statuary, and arched doorways. It took 27 years to build, owing to subsidence of the apparently substantial island. By the time the tower was completed in 1611, the island was completely sub­ merged at high water. Cordouan thus became the first lighthouse to be built in the open sea, the true forerunner of such rock structures as the Eddystone Lighthouse. Lighthouses in Madras Presidency: A Brief History 145 The influence of the Hanseatic League helped increase the number of lighthouses along the Scandinavian and German coasts. At least 15 lights were established by 1600, making it one of the best-lighted areas of that me. During this period, lights exhibited from chapels and churches on the : -a st frequently substituted for lighthouses proper, particularly in Great Britain. THE BEGINNING OF THE MODERN ERA The development of modern lighthouses can be said to have started about 1700, when improvements in structures and lighting equipment began to appear more rapidly. In particular, that century saw the first construction _ : towers fully exposed to the open sea. The first of these was Henry V. inStanley's 120-foot-high wooden tower on the notorious Eddystone Rocks off Plymouth, England. Although anchored by 12 iron stanchions laboriously grouted into exceptionally hard red rock, it lasted only from 1699 to 1703, when it was swept away without a trace in a storm of excepnonal severity; its designer and builder, on the lighthouse at the time, perished with it. It was followed in 1708 by a second wooden tower, con­ structed by John Rudyerd, which was destroyed by fire in 1755. Rudyerd's lighthouse was followed by John Smeaton's famous masonry rower in 1759. Smeaton, a professional engineer, embodied an important new principle in its construction whereby masonry blocks were doverailed together in an interlocking pattern. Despite the dovetailing feature, rhe tower largely relied on its own weight for stability-a principle that required it to be larger at the base and tapered toward the top. Instead of a straight conical taper, though, Smeaton gave the structure a curved pro­ file. Not only was the curve visually attractive, but it also served to dissipate some of the energy of wave impact by directing the waves to sweep up the walls. Owing to the undermining of the foundation rock, Smeaton's tower had to be replaced in 1882 by the present lighthouse, constructed on an adjacent part of the rocks by Sir James Douglass, engineer-in-chief of Trinity House. In order to reduce the tendency of waves to break over the lantern during severe storms (a problem often encountered with Smeaton's tower), Douglass had the new tower built on a massive cylin­ drical base that absorbed some of the energy of incoming seas. The upper portion of Smeaton's lighthouse was dismantled and rebuilt on Plymouth Hoe, where it still stands as a monument; the lower portion or "stump" can still be seen on the Eddystone Rocks. Following the Eddystone, masonry towers were erected in similar open-sea sites, which include the Smalls, off the Welsh coast; Bell Rock in 146 K. Marimuthu Scotland; South Rock in Ireland; and Minots Ledge off Boston, Massachusetts, U.S. The first lighthouse of the North American continent, built in 1716, was on the island of Little Brewster, also off Boston. By 1820 there were an estimated 250 major lighthouses in the world. MODERN LIGHTHOUSES Construction While masonry and brick continue to be employed in lighthousecon­ struction, concrete and steel are the most widely used materials. Structurally well suited and reasonably cheap, concrete especially lends itself to aesthetically pleasing designs for shore-based lighthouses. Modern construction methods have considerably facilitated the building of lighthouses in the open sea. On soft ground, the submerged caisson method is used, a system applied first in 1885 to the building of the Roter Sand Lighthouse in the estuary of the Weser River in Germany and then to the Fourteen Foot Bank light in the Delaware Bay, U.S. With this method, a steel caisson or open-ended cylinder, perhaps 40 feet in diameter, is positioned on the seabed. By excavation of sand, it is sunk into the seabed to a depth of possibly 50 feet. At the same time, extra sec­ tions are added to the top as necessary so that it remains above high water level. The caisson is finally pumped dry and filled with concrete to form a solid base on which the lighthouse proper is built. Where the seabed is suitable, it is possible to build a "float out" light­ house, consisting of a cylindrical tower on a large concrete base that can be 50 feet in diameter. The tower is constructed in a shore berth, towed out to position, and then sunk to the seabed, where the base is finally filled with sand. Weighing 5, 000 tons (4.5 million kilograms) or more, these towers rely on their weight for stability and require a leveled, pre­ pared seabed. For greater stability during towing, the cylindrical tower itself often consists of two or more telescopic sections, raised to full height by hydraulic jacks after being founded on the seabed. This design was pioneered largely in Sweden. Another design, which is more independent of seabed conditions, is the conventional steel-piled structure used for offshore oil and gas rigs. Piles may be driven as deep as 150 feet into the seabed, depending on the underlying strata. The United States has built about 15 light towers of this type, one prominent example being Ambrose Light off New York. Helicopters are widely employed in the servicing and maintenance of offshore towers, so that modern designs normally include a helipad. In fact, older cylindrical masonry structures of the previous era-including the Eddystone tower-have had helipads fitted above their lanterns. Lighthouses in Madras Presidency: A Brief History 147 ■himinants Kood fires were not discontinued until 1800, though after about 1550 coal, i more compact and longer-burning fuel, was increasingly favoured, parznilarly in northwestern Europe. A lighthouse in those days could consume 300 tons or more of coal a year. In full blaze, the coal fire was far superior to other forms of lighting, preferred by mariners to oil or candles. The disadvantage of both coal fires and early oil lamps and candles was the prodigious amount of smoke produced, which resulted in rapid black­ wring of the lantern panes, obscuring the light. Oil lamps In 1782 a Swiss scientist, AimeArgand, invented an oil lamp whose steady smokeless flame revolutionized lighthouse illumination. The basis of his invention was a circularwick with a glass chimney that ensured an ade­ quate current of air up the centre and the outside of the wick for even and oroper combustion of the oil. Eventually, Argand lamps with as many as 10 concentric wicks were designed. These lamps originally burned fish oil, later vegetable oil, and by 1860 mineral oil. The Argand lamp became the principal lighthouse illuminant for more than 100 years. In 1901 the Briton Arthur Kitson invented the vaporized oil burner, which was subsequently improved by David Hood of Trinity House and others. This burner utilized kerosene vaporized under pressure, mixed with air, and burned to heat an incandescent mantle. The effect of the vaporized oil burner was to increase by six times the power of former oil wick lights. (The principle is still widely used for such utensils as camp stoves and pressure lamps.) Gas lamps Early proposals to use coal gas at lighthouses did not meet with great suc­ cess. A gasification plant at the site was usually impracticable, and most of the lights were too remote for a piped supply. However, acetylene gas, generated in situ from calcium carbide and water, came into use around the turn of the 20th century, and its use increased following the introduc­ tion of the dissolved acetylene process, which by dissolving the acetylene in acetone made it safe to compress for storage. Acetylene gas as a lighthouse illuminant had a profound influence on the advancement of lighthouse technology, mainly through the work of GustafDalen of Sweden, who pioneered its application between 1900 and 1910. Burned either as an open flame or mixed with air in an incandescent mantle, acetylene produced a light equal to that of oil. Its great advantage 148 K. Marimuthu was that it could be readily controlled; thus, for the first time automatic unattended lights were possible. Dalen devised many ingenious mecha­ nisms and burners, operating from the pressure of the gas itself, to exploit the use of acetylene. Most of the equipment he designed is still in general use today. One device is an automatic mantle exchanger that brings a fresh mantle into use when the previous one bums out. Another, econo­ mizing on gas, was the "sunvalve, " an automatic day-night switch capable of extinguishing the light during the day. The switch utilized the difference in heat-absorbing properties between a dull black surface and a highly polished one, producing a differential expansion arranged by suitable mechanical linkage to control the main gas valve. The acetylene system facilitated the establishment of many automatic unattended lighthouses in remote and inaccessible locations, normally requiring only an annual visit to replenish the storage cylinders and over­ haul the mechanism. Liquefied petroleum gas, such as propane, has also found use as an illuminant, although both oil and gas lamps have largely been superseded by electricity. Electric lamps Electric illumination in the form of carbon arc lamps was first employed at lighthouses at an early date, even while oil lamps were still in vogue. The first of these was at Dungeness, England, in 1862, followed by a num­ ber of others. The majority of these, however, were eventually converted to oil, since the early arc lamps were difficult to control and costly to oper­ ate. In 1913 the Helgoland Lighthouse in the North Sea off Germany was equipped with arc lamps and searchlight mirrors to give a light of 38 mil­ lion candlepower, the most powerful lighthouse in the world at that time. The electric-filament lamp, which came into general use in the 1920s, is now the standard illuminant. Power output ranges from about 1, 500 watts for the largest structures down to about 5 watts for buoys and minor beacons. Most lamps are of the tungsten-halogen type for better efficiency and longer life. As new types of electric lamps become available-for example, compact source discharge tube lamps-they are adopted for lighthouse use wherever suitable. ANCIENT INDIAN LIGHTHOUSES A beacon is any artifact, built or floating, visible or recognizable from a distance, whether by land or sea, that is specifically intended to provide a signal or warning for any purpose not exclusive to navigation. The use of terms such as 'Stone Age' or 'Bronze Age' is dependent upon the relative stage of development of the civilization in question. Lighthouses in Madras Presidency: A Brief History 149 However, for the purposes of chronology in the Mediterranean region, md in accordance with standard practice, in this article we shall consider the Stone Age as being prior to 3,000 BC. We take the Bronze Age as being divided into three parts: early Bronze Age from 3, 000 BC to 2, 000 BC, Middle Bronze age from 2, 000 BC to 1,100 BC and late Bronze Age from 1 100 BC to 700 BC. The Iron Age is considered to span the years from 1, 200 BC to 555 BC. It is not surprising to find that the first lighthouse on the west coast of India was built at the entrance to Bombay (now Mumbai), the chief seanort of western India, and a great city with a sheltered harbour covering ~0 square miles. Originally owned by Portugal, Bombay passed into British hands by the royal marriage of Charles II to Princess Catherine of Braganza. This single event was to have very great consequences for the ruture prosperity of Great Britain for, arguably, it gave Britain the most significant toehold in what was to become the most precious jewel in the crown of the British Empire. In 1668, Charles transferred ownership of Bombay to the East India Company and under the leadership of Gerald Aungier, Bombay prospered greatly. During the British wars with France in 1744-48 and 1756-63, Bombay was developed as a naval base, but the greatest spur to its development occurred as a result of the Chinese famine of 1770. More Chinese land was required for growing rice, at the expense of cotton, so the Bombay cotton mills were rapidly expanded to cope with the Chinese demands for cotton. The industry grew at a tremendous pace.The opening of the Suez Canal in 1869 also greatly increased the volume of trade passing through Bombay.The need for a navigation light for the port was first met in 1842 by the mooring of a lightvessel off Colaba Point (18°50'N 72°47.5'E). Five years later, in 1847, a lighthouse was constructed on Colaba Point (18°53.7'N 72°47.7'E), this time with a light of a modem revolving design that gave a bright flash every two minutes. The white tower was 89 feet (27 m) tall, and the elevation of the light itself was a total of 132 feet (40 m), giving it a range of 17 miles (27.3 km). Four more years were to pass before lighthouse construction began in the regions beyond Bombay at Karachi (Kurrachee) in 1851. Today, of course, Karachi is a major seaport of Pakistan. At this time, the settlement was part of British India, having been taken in 1847. Karachi was an important strategic location on the northwestern side of the Indus Delta, one of the world's great navigable rivers that led not only to Hyderabad and the surrounding hinterland, but offered rapid access deep into north­ western India. The British constructed a lighthouse as part of their fortifications at Manora Point (24°47.3N 66°58.3E), which marked the western side of the entrance to the Bay leading to Karachi. The fixed light was visible for 16 miles (25.7 km) from its height of 120 feet (36.4 m). 150 K. Marimuthu In the same year, another light structure was built on Piram Island (F044S in the Cambay Gulf. Its fixed light was visible for 12 miles (19.3 km) from an elevation of 66 feet (20 m). A year later another light was shown for the first time from Taptee (today, known as Hazira lighthouse on Suvali Point, F0476) on the north shore at the mouth of the river. The light was visible for 10 miles (16 km) from a height of sixty feet (18.2 m). In 1856 a spate of lighthouse building took place, with structures being completed at Mandvi (F0357), a small light at Ghogha Bandar (F0452), Koon Bunder (22°17'N 72°18.3'E), Devajagan (F0468, also called Tankaria) and BleaguraDandee (F0472). A fort had been constructed at Mandvi, in the strategic entrance to the Gulf of Kachchh (Kutch) and the lighthouse provided on the southwest bastion at a height of 80 feet (24 m). Koon Bunder was located on the west bank of the Sabermutty River and the light was shown from September 1 to June 15. BleaguraDandee was a minor light, whilst Taptee light was on the north shore of the river. South of Bombay, the next important settlement was the famous for­ tified enclave of Goa. Aguada Fort is still to be found on a hill behind the town and it was here at the great height of 280 feet (85 m) that the light shone from the lighthouse, which still exists (F0606). Findlay reported that the flash interval was a long seven minutes, although he seemed unsure of this fact. The shores of southwest India are known as the Malabar Coast. They had seen a lot of settlement over the centuries of exploration and conse­ quently a number of quite early lighthouses were constructed at Tellicherry (1835 with a second light added in 1847), Cochin (F0698,1839), Cannanore (F0672, 1843), Calicut (F0686, 1847), Mangalore (F0668, 1851), Kumta (also written Coumta, F0642,1855) and Allepey (F0706,1862). Seas around these shores were susceptible to the southwest monsoon, during which time lights were not shown. The lighthouse at Allepey was a sub­ stantial red brick tower, 85 feet (25.8 m) in height that remains in use today. Calicut was one of the first points of contact between Europe and India, for it was here that Vasco da Gama called in 1498. The city was already a cen­ tre for the spice trade, as well as textiles, tea and nuts, and had given its name to the type of cotton (calico) that was traded here. The light at Calicut was exhibited from the greater height of 105 feet (31.9 m), five feet (1.5 m) higher than from Allepey, but the latter was a second order light visible to 15 miles (24.1 km) compared to only 12 miles (19.3 km) from Calicut. In 1799, like the other trading centres of the Malibar Coast, the British acquired Mangalore at the mouth of the Netraviti River. It was important for most of the usual commodities, as well as coffee and timber, but also as a centre for traditional shipbuilding for the Sultans of Mysore. A few thousand years ago, the sea level was low enough for Ceylon to be part of the Indian land mass. (It is worthy of note that earliest Indian Lighthouses in Madras Presidency: A Brief History 151 history tells of a great flood, in much the same way as is told in the Bible [2]. We might speculate that such an event at the earliest points in our Human history may be linked with the now proven rise in world sea lev­ els.) Even today, the Gulf of Mannar, which separates the two countries, has two narrow spits of land that form a broken barrier across the Gulf. The island of Mannar in Ceylon is linked to Pamban Island of India by Adam's Bridge, a row of coral islands protected on either side by reefs. The seas at this point were much used by ships passing around the south­ ern tip of India and heading for the northern shores of the Bay of Bengal, and the land that stretched northwards from Mannar became known as the Coromandel Coast. The British established lights here during the early phase of Indian lighthouse construction. At Tuticorin and Palk Bay, two lighthouses were built in 1845. Findlay described the first as a fixed light shown from an obelisk, 37 feet (11.2 m) high, situated on Hare Island (8o47.3'N 78ol0.9'E), which was given as 2% miles east of Tuticorin. Whether its description as an obelisk implies that it was a lightstructure rather than a lighthouse is not known, but the probability is that, because of the types of design prevalent at the time, it was, indeed, a lighthouse. Today, the description is given under F0734. The Palk Bay lighthouse was a round tower, 41 feet (12.4 m) high situated one mile (1.6 km) east of Paumben Pass (9°17.5'N 79°12.6'E). Its fixed light was visible for 12 miles (19.3 km) from a height of 84 feet (25.5 m). Farther north, a lighthouse was con­ structed at Nagappattinam (listed by Findlay as Negapatam, F0914) a year later in 1846. The similar fixed light was shown from a height of 100 feet (30.4 m), but was lowered to 88 feet (26.7 m) during a northeast mon­ soon. A small distance north again, we come to Karikal (10°55'N 79°44'E) where a fixed light was shown from 1853 onwards. Pondicherry is a region of southern India that was once the chief French settlement in India. The Pondicherry lighthouse (F0926) was the first on the Coromandel Coast, built in 1836 and it is interesting to specu­ late whether this French initiative was responsible for the building of further lights along the coast. It was visible for 15 miles (24.1 km) from a height of 131 feet (39.8 m). The lighthouse in Madras (F0936) followed some years later in 1844. Findlay records that it showed both a fixed light and a flashing light every two minutes. This was from a column 125 feet (37.95 m) high on the Esplanade north of the fort. It is reported to have been visible at a distance of 24 miles (38.6 km) - a great distance in those times. The Armegon Shoal (F0951) was a hazard to ships sailing north from Madras and was marked by a lighthouse in 1853. Its location was given as 13o52.8'N 80ol2'E. The fixed light was visible at 15 miles and was 95 feet (28.9 m) above sea level. North from the Armegon Shoal, a lighthouse 152 K. Marimuthu showing a fixed light visible for 12 miles was built in 1851 at Masulipatam, 2 miles northwest of Point Divy and located at 15o58.9'N 81o9.5'E. The height of the light was 95 feet (28.9 m). The second lighthouse in India was established at Cape Godavari (also recorded as Gordeware Point) in 1817, located at 16o 49.IN 82ol8.4'E. This was an important point marking entry to the region of the sacred Godavari River and was one of the earliest European settlements in India. Flowing through Andhra Pradesh, the river flows southeast through eastern India where Rajamundry was to become a major city. The river enters the ocean at two mouths, one at Cape Godavari and the other at Point Narasapatnam. The Godavari lighthouse was a white stone tower, sixty feet (18.2 m) in height and situated at a point IV2 miles (2.4 km) west by north on Hope Island in Coringah Bay. In 1849, a lighthouse called Santapilly (F0980) was built % mile (1.2 km) inshore on Conada Hill where the height of the light was given as 150 feet (45.7 m). The location was 18o3.5'N 83o36.6'E and the light was fixed and visible for 14 miles. In 1838 a lighthouse was constructed two miles southwest of False Point (Fl006) as a fixed bright light visible for 18 miles, the increased range due to its height of 120 feet (36.6 m) above sea level. At Pilot Ridge, a light vessel was first moored in 1851 in 211Z> fathoms (39.3 m) during the southwest monsoon. It showed a blue light and a maroon light every 30 minutes. To the east of India lies the great Bay of Bengal, and in the far north lies the city of Calcutta on the banks of the Hughli River. By 1810, the British were long established as rulers of Bengal - a large region rich in natural resources that were to provide Britain with a source of great income for over a century. The first lighthouse in South East Asia was built here in 1810 at Cowcolly or Kedgeree, two miles southwest of the point at the eastern side of the entrance to the river. There are so many river mouths and other inlets in this area that it is possible that the British decided to mark the entrance to the Hughli more as an identification than to mark a particular hazard. Sadly, the Cowcolly lighthouse is not listed as active today and whether it still exists is not known. The location of Calcutta well inland from the northern Indian Ocean, albeit on a navigable river, was a major driving force in the early estab­ lishment of a lighthouse here, rather than at Bombay, for example, where the first light was established in 1842 in a light vessel. Since the Hugh River was to become such an important navigable channel, it is unsur­ prising that a number of other lights were eventually established along it. An iron lighthouse, 82 feet (25 m) high was built at Middleton Point on Saugor Island (Fl028) in 1852. The light was a bright revolving light that flashed every 20 seconds and was visible for 15 miles, the standard range for lights of this kind at the time. Lighthouses in Madras Presidency: A Brief History 153 Lightships were popular in these times, not just because they were asm established, but because they were easily moveable in the larger 0 - mannels that were always susceptible to silting-up. There were Knw occasions when permanently established light structures were renredundant because the course of a river had changed. In 1861, -1ng to Findlay, there were at least two in the Hughli River. The most rant would seem to be located in the eastern Channel at 21°4'N - E established in 1843 with a single fixed white light. This entry in . s list is most interesting for we see an indication of how the parxm^r conditions created by the monsoon climate affected the operation navigational aids. The light vessel was moved to different loca1 - - during the year. 'From October to March in 714 fms.(13.7 m) at entrance to E. channel, wa ' maroon or torch every 14 hour, and blue It. every hour. From March 1* ‘ Sept. 15 is removed to lat. 21o N., with blue It. every 14 hour and every U hour."A second lightvessel is reported at 21°26.3'N " E in the Gaspar Channel showing "blue and maroons alternately" - i most unusual description of lights. In 1857, a second lightvessel was b * md in the Mutlah River at 21° 6'N 88°48'E. Besides its bright revolv­ er £ Hght, visible for 7 miles, Findlay reports that it fired rockets at 8 p.m., ■■unight and 4 a.m. from March 16 to October 16. HERITAGE OF LIGHTHOUSE IN INDIA branding to mythology the 'Yakshas' and the 'Yadavas' Landed at khau during the prehistoric period. The name of the port Jakhau is said i have been adopted from the term 'Jakh' derived from /Yaksha'. Jakhau aenained an important port till the opening of a port at Mandvi in 16th □Entury. Jakhau Lighthouse is connected by an all-weather road to Naliya e Rail head linked to Bhuj about 70 Km away. During 1950's large-scale salt pans were developed at Jakhau and the rt of Jakhau was revived to handle the export of raw salt to Japan and K rea. Therefore providing a major Lighthouse at Jakhau became essentsal. The first lighthouse was established in 1957. The light operating on DA gas in 500 mm Lantern and cut and polished drum optic with AGA flasher, temporarily provided on MS trestle tower. The lighthouse project was planned and completed by 1965. The light equipment supplied by M/s Stone Chance, Brimingham, was mstalled on the RCC Tower and the light was commissioned in April 1965. The emergency source, capillary tube (Alladin Lamp) was replaced first by LPG Burner in 1993 and then by a 100W 12V halogen lamp in 1996. A Racon was installed on the tower in September 1999. The incan­ descent lamp 1500W 100V and emergency source were replaced by a 154 K. Marimuthu cluster of three 150W 230V Metal Halide lamps with a direct drive system by stepper motor in May 2004. Jakhau will be an important station of the planned VTS for Gulf of Kachchh with Automatic Direction Finder sys­ tem. During the reign of Emperor Ashoka, who was a contemporary of Ptolemyll, royal emissaries sailed towards Ceylon (Sri Lanka) and the Far East Including China and Japan and it is very likely that similar light­ houses were also constructed on our country's coastline. In the 7th Century A.D, Pallava King Narasimhavarman I known as Mamalla, or the great wrestler, is credited with the establishment of a lighthouse at Mamallapuram (Mahabaliburam), 56 Km south of Chennai, where log fire was burnt in a crucible for guiding the ships. In Mauryan India, (3rd century B.C.) during the regime of Chandragupta Maurya, shipbuilding was a regular and flourishing industry, the output of which was quite large. This industry was, how­ ever, a state monopoly and ship builders were salaried public servants and were not permitted to work for private persons. This development of national shipping made necessary the Coming to more recent times, according to AbulFazl, there was cre­ ated in the time of Emperor Akbar (17th century) the office of 'Meer Behry'. The 'Ain-i-Akbari' gives details of manifold regulations, which in many respects are very similar to those mentioned in the monumental Sanskrit work the 'Arthasastra' of Kautilya. The broad function of the 'Meer Behry'. LIGHTHOUSES: TAMIL NADU Chennai Lighthouse District The Chennai Lighthouse, along with 23 other lighthouses along the east­ ern, southern and western coast of the Indian peninsula, comes under the administration of the Chennai Lighthouse District. In accord with the Lighthouse Act of 1927 and the Lighthouse (Amendment) Act of 1985, the Chennai Lighthouse District comprises under its jurisdiction part of Kerala State which is south of latitude 9Q00'N and state of Tamil Nadu, which is south of latitude 13Q00'N and west of longitude 80Q30'E and the union territory of Pondicherry, which include the following lighthouses. PULICAT LIGHT HOUSE The History of Pulicat revolves around the early role of Pulicat as a sea­ port in one of the few natural harbours on the Coromandel Coast of South Lighthouses in Madras Presidency. A Brief History 1. Alleppey 2. KovilThottam 12. Kodikkarai 3. Tangasseri Point (Quilon) 4. Anjengo 13. AmmpattinamDgps 14. Pasipattinam 15. Rameswaram 5. Vilinjam 16. Pamban 6. Muttam Point 7. KanyaKumari (Cape Comorin) 8 Manappad Point 17. NagapattinamDgps 18. Porto Novo 19. Pondicherry Lighthouse AndDgps 20. Mahabalipur 21. Madras 9. PandiyanTivuDgps 10. Kilakkarai 11. Point Calimere A55 22. PulicatDgps MADRAS DISTRICT India. Pulicat is in Tamil Nadu at the mouth of Pulicatlake. Pulicat is notable as the headquarters of Dutch Coromandel between 1616 to 1690 and 1782 to 1825.The Light House expert Mr Alan D Stevenson on his visit to this lighthouse in 1926 observed the light to be extremely low powered 156 K. Marimuthu for the purpose of marking such danger. Besides he also mentioned about frequent Malarial attacks infesting the station. There was an old Lighthouse positioned adjacent to the present Lighthouse Tower. It was a 20m high Brick masonry circular tower with black & white bands. The tower was constructed in the year 1859. The equipment consisting of a fourth order optic with PV light was installed on this tower The equipment remained in service till 1986 after certain modifications carried out in 1910. The present Lighthouse Tower was constructed during 1984-85 and PRB-21 equipment supplied by M/s Asia Navigation Aids, New Delhi was installed and commissioned on 25th August 1986. The old Lighthouse Tower was later dismantled. Sealed beam ZD' type lamps^were replaced by Auto head lights with 24V 100W halogen lamps in 1995. Pulicut will be also be a DGPS station. MADRAS LIGHT HOUSE The city of Madras (Chennai) was founded by the factor Francis Day of British East India Company on a three square mile strip of land, on 22nd July 1639. Immediately afterwards his boss Andrew Cogan laid founda­ tion of Fort St George and established seat of the Company's Agency in the Fort on 24th September 1641. Madras became the capital of Madras Presidency controlling whole of south India except a few princely states.Madras enjoyed the status of Capital ever since-after the independ­ ence and creation of linguistic state on 1st Nov 1956 renamed as Tamil Nadu on 14-1-1969. Madras was renamed as Chennai in 1996. There must be some arrangement of exhibiting light to assist com­ pany's vessels arriving at Madras and to enter the port during the 17 & 18th centuries but no such record is available. The first conventional light­ house was the oil wick lamp placed on the roof of the officer's Mess cum Exchange building in 1796. The building is now known as Fort Museum. The construction of a regular Lighthouse Tower in the compound of present High Court was taken up in 1838 and completed in 1840 on which the wick lamp was shifted as the supply of the new equipment by M/s Chance Bros, Birmingham was delayed. The new flashing light consisting of Argand lamps and reflectors was installed which started functioning from 1st January 1844. Fifty years later the Lighthouse equipment with lantern was shifted on to the dome of new High Court building and started functioning from there with effect from 1st June 1894. An improve­ ment of equipment was introduced in 1927. The present modern Lighthouse was built in 1976 and Electrical Lighthouse equipment manufactured by BBT, Paris was installed on it which started functioning with effect from 10th January 1977. Lighthouses in Madras Presidency: A Brief History 157 WAHABALIPURAM LIGHT HOUSE , V zhabalipuram is connected to Chennai (Madras) by East Coast Highway. It is about 35 km from Chennai. Mahabalipuram also known as yamallapuram was an important port built by Pallavas during the Seventh Century for the maritime trade with the countries of South East -31a and Mediterranean. The rock cut temples, pavilions and monuments 1 sculpted during the same period are the principal attractions here fcawing visitors from around the world. In the ancient times the log fire on one of the high rocks used to serve 15 beacon for the vessels approaching Mahabalipuram port during the Bght. The British established the first conventional lighthouse by placing i wick lamp inside 4th order optic and lantern on the roof of CMakkaneesway Temple on 15th May 1887. This temple has been built on I i p of Mahishasuramardini cave. Lighthouse was then known as Seven Tigoda Lighthouse because the structures-mandapa, Rathas, Cave vpeared like Pagodas when observed from the sea. A dressed stone masonry circular tower 26m in height was built on a ■earby rock in 1900. Its exterior surfaces were left natural and unpainted s: as to blend with surroundings. The PV equipment and 2nd order three Lanel optic assembly supplied by M/s Chance Bros, Birmingham was .- 'Tailed over this tower. The light was commissioned into service on 31st starch 1901. In 1937 and 1940 the equipment underwent changes and modifications to give single flash every ten seconds. The PV source was replaced by incandescent electric lamp in 1994. ?ONDICHERRY LIGHT HOUSE Itondicherry is the headquarters of former French settlements in India- . ndicherry and Karaikal in TamilNadu, Yaman in Andhra Pradesh and Mahe in Kerala. The city of Pondicherry is the typical cosmopolitan with 55 languages spoken here. Pondicherry is famous for 'Aurovillo'; the Bshram set up by Sri AurobindoGhosh, the Revolutionary Saint. It has the i reputation of being an international city and is about 3 Vi hours drive from Madras (Chennai). The rail network terminates here. The French East India company established settlement at Pondicherry ir. 1673. They transformed this obscure village into a flourishing trading rer.tre .The Dutch captured it from French in 1693 but returned it to them I ir 1699. The French handed over the territory to the Government of inde­ pendent India in 1954. It was given the status of Union Territory on ist November 1956 so as to retain its specific identity. The early sea-farers to Pondicherry were guided by log fire kept burn­ er g on Gorimedu hill 5 km west of the port. A 25 m lighthouse standing cn the sea edge near the place Du Government was built by French in 158 K. Marimuthu 1836 and powerful wick lamp inside 5th order optic was placed on it. The lighthouse was commissioned in to service on 1st July 1836. After 50 years of service the wick lamp was replaced by a PV Burner and 4th order opti­ cal apparatus supplied by M/s BBT, Paris in 1886. In the year 1931 modification work was carried out and the fixed light was replaced by the revolving equipment supplied and installed by M/s BBT, Paris. With the development of city lights, there arose the need to provide more powerful light on a taller tower and also the Direction Finding Radio signal transmitting system. A new Lighthouse was built in 1979.The elec­ trically operated lighting equipment supplied by M/s. J. Stone India & Co., Calcutta and the Radio Beacon equipment, supplied by 'Nautel', Canada, were installed at the station. The Radio Beacon went on the Air on 15th May 1979 and the Lighthouse was commissioned on 10th December 1979. A 'Racon' of 'Tide Land', USA, make was added at the station on 14th July 1996.The Racon emits Morse code 'D'. The Differential Global Positioning System (DGPS) equipment manufactured by M/s Leica Geo Systems, U.S.A, and supplied by M/s. Elcom Marine, Mumbai was inte­ grated on 10th June 1998 converting the Radio Beacon to DGPS station. The old Transmitters were replaced by SAC, USA make transmitters on 30th June 2003. The old lighthouse served the mariners for almost a century and half and now proudly stands as monument under the UT Administration - A fitting tribute to its valuable services. PORTONOVO LIGHT HOUSE Portonovo Lighthouse is on the outskirts of Paringapattai village. The famous Chidambaram temple is about 22 km west from here. The Railhead is Chidambaram. There an all-weather road up to Paringapattai and then a short stretch of metalled track up to the Lighthouse. This site was a temporary camp established by French East India co in mid-17th century prior to moving to Pondicherry and settling down there. They gave the name Portonovo to this place. There was no Lighthouse provided in the region prior to this Lighthouse It was constructed during 1979-81 and on completion the PRB-21 equipment supplied by M/s. Asia Navigational Aids Ltd., New Delhi was installed and commissioned on 31st March 1981. Subsequently the sealed-beam lamps were replaced by Auto-head lamps in 1997. NAGAPPATTINAM LIGHT HOUSE Nagapattinam in Thanjavur district is an important port of Tamil Nadu. It is situated on the mouths of Kaduveiyaruriver. The port has the glori- Lighthouses in Madras Presidency: A Brief History 159 cus history. It is in existence since the 8th century, period of great Cholas. During those days a staff was provided on which flag used to be hoisted to enable vessels enter the port. There was a direct ship service from \agapattinam to Penang (Malaysia) and Singapore. The famous MV Chidambaram was the vessel plying regularly till it was destroyed in a fire off Nagapattinam in 1970. First conventional 20 m high Lighthouse tower was built inside the port premises by the British in 1846. A wick lamp inside the 6th order _ r>tic was placed on this tower. The system worked till 1903 when a new equipment with 4th order optic and characteristic of occulting flashes was introduced. A storm warning signal hoisting mast was also erected in '.903. In 1923 complete renovation of lighthouse was carried out and the new PV equipment with 85 mm burner and first order optic assembly in two panels, revolving on mercury float was installed. The equipment was supplied by M/s. Chance Bros., Birmingham. This equipment worked up to 1985. The importance of Nagapattinam demanded improvement at contin­ uous pace. In 1985 the PV equipment was replaced by PRB-21 equipment with sealed beam lamps supplied by M/s. ANA, New Delhi on 20th March 1985. The Radio beacon equipment (400 W) supplied by MACE, Visakhapatnam, transmitting on 295 kHz was installed at the station in ’.992 and the 'Tide land''Racon' was installed on 3rd September 1996. In the year 1997 the sealed beam lamps have since been replaced by Auto head lamps. The DGPS equipment manufactured by M/s Leica Geo Systems, U.S.A, and supplied by M/s. Elcome Marine, Mumbai was inte­ grated on 30th April 2003, converting Radio Beacon to DGPS station. POINT CALIMERE LIGHT HOUSE 'Calimere' is the Dutch word for beautiful. Towards the end of 16th cen­ tury, the Dutch contingent had camped on this coast and so the name. They must have raised some land mark for the identification but no such ruins are seen now. The first ever lighthouse was provided here in the 8th century during the regime of Raj-raja Chola. It was a mound of stones over which logs were burnt as the source of illumination. The present Lighthouse was built in 1890 during British regime for the benefit of the vessels approaching the port of Nagapattinam. It was an ordinary wick lamp. In 1902 a 4th order optic with occulting flashing light was introduced in place of wick lamp. In 1926 when the LH Expert Mr Stevenson visited the place, he mentioned in his report that he could not enter the tower as it was locked and the light keeper was absent. The 'Dalian Mixer' equipment operating on DA gas, with three panel 150 mm size revolving optic, of AGA make (Ex Armagon LH), was 160 K. Marimuthu installed in 1933 in place of the 4th order optic. This equipment was ear­ lier at Armagon lighthouse which was abandoned in 1928. The same equipment functioned satisfactorily till 1995. The entire equipment was replaced by a 300 mm drum optic with electronic flasher (JLWL) &12 V 100 W halogen lamp operating on Batteries charged by Solar panels, on 31st March 1996.1n 1986 a 'Racon' transmitting code 'K' was installed on the tower by ONGC for their oil exploration programme. PAMBAN LIGHT HOUSE The region was part of Madras presidency prior to independence. The lighthouse is an important land mark for the vessels crossing the Pamban pass, below the railway bridge from West to Palk Strait on the East. The lighthouse stands on sand hillock at the North West point of Rameswaram island. A circular masonry column was first built in 1846 and wick lamp was placed on it. The present tower was constructed in 1901 and a wick lamp with high intensity burner and 4th order Optic, supplied by M/s. Chance Brothers, Birmingham, was installed. It was a group occulting light. The equipment underwent alteration in 1923 with the introduction of revolving system and a Lantern House, supplied by M/s. Chance Brothers, Birmingham. This was replaced in 1987 by 300 mm Drum Optic of M/s. B.B.T., make and Dissolved Acetylene Gas Flasher with AGA Sun Valve. The lighthouse which was earlier under the Tamil Nadu Maritime Board was transferred to the Department of Lighthouses and Lightships in March 2004. The light source and Dissolved Acetylene Gas Flasher was replaced by 250 Watts/230V Halogen Lamp with electronic flasher in March 2004 itself. KILAKKARAI LIGHT HOUSE The coast between Thonithura and Valinokkam point has chain of islets and shoals. The main activity in the region is fishing. A flag mast was the only assistance to the fishermen-mostly. With the increase in activi­ ties the region needed to be marked with a powerful light for the caution against the dangers. As such this Lighthouse was planned during 197475. The construction of the tower was completed towards the mid 1979 and the PRB - 42 equipment supplied by M/s. Asia Navigation Aids Ltd., New Delhi, was installed on the tower. The Lighthouse was com­ missioned into service on 2nd October 1979. The 'C' type sealed beam lamps were replaced by 'D' type 30V 200W sealed beam lamps on 30th April 2003. Ligh thouses in Madras Presidency: A Brief History 161 PANDIYANTIVU LIGHT HOUSE PandiyanTivu Lighthouse is the main Lighthouse for the Port of Tutikkodi (Tuticorin) on the Western side of the Gulf of Mannar. There are number of islets/reefs in the region. Tivu is the Tamil version of Sanskrit Dweep' (Island). PandiyanTivu an island earlier, was known as Hare Island. It is connected to the main land by an all-weather road after recla­ mation. The Lighthouse is situatechon-the northern end of PandiyanTivu that is about 4.5 km from the town of Tutikkodi. The port of Tuticorin (Tutikkodi) has been an important commercial centre since the late 18th century. The steamers from this port sailed up to Calcutta, Madras, Colombo, Bombay, Bhavnagar and Karachi. A conven­ tional wick lamp-light burning on vegetable oil, in a 6th order optic was being exhibited from a flag post since the year 1845. Subsequently a masonry column replaced the mast. The system continued till 1905 when the column was improved and its height was increased to 28 feet. A wick lamp burning the mineral oil inside 4th order drum optic was placed on die column. As the traffic at the port increased, the demand to improve the light­ house came. In 1930-35 a tower of 30 m height was constructed and a flashing PV lighting equipment supplied by M/s. Chance Bros., Birmingham was installed on it. Subsequently when the electricity mains supply was extended to the Lighthouse towards 1970's it was decided to provide an electrically operated Lighthouse. The present Reinforced con­ crete Tower 45m high was completed in December 1979 over which the equipment supplied by M/s. J. Stone & Co. (India) was installed and com­ missioned on 28th April 1980. A Racon emitting code 'O' has been provided separately in the port area. The DGPS equipment to be installed at the station shortly. MANAPPAD POINT LIGHT HOUSE Manappad point is a high sandy head land jutting into the sea on the south side of the Manappad Bay-along its coast line is situated Manappad fishing village. On the summit of promontory and close to the lighthouse is situated the Holy Cross Church built in 1581. The great apostle St. Francis Xavier visited Manappad in 1542 and again in 1543. Manappad is known as Pearl Fishing harbour. It is about 70 km from Kanniyakumari and 18 Km from Tiruchendur and is connected by an all-weatherroad.The Lighthouse tower was built inl887-88 under Madras Presidency Control. The 3rd order optical equipment supplied by M/s. Chance Bros., Birmingham was installed and the lighthouse was commissioned in to service on 30th March 1888. The murette of the 162 K. Marimuthu lantern room is of brick masonry raised from inner lining of the tower masonry wall. The oil wick lamp was replaced by a PV Burner of 55 mm size in the year 1902 after some modifications in the lighthouse carried out in 1901. Mr D. Alan Stevenson LH Expert had visited the lighthouse in 1926 and found it be functioning satisfactory. After more than 90 years of its existence the Electric main supply could be extended to the station. The PV light source was replaced bv 230V 400 W Metal halide lamp and was commissioned on 31st August 1994. CAPE COMORIN LIGHT HOUSE Kanniyakumari is a prominent tourist centre known for the confluence of three seas Indian Ocean, Arabian Sea and Bay of Bengal, Vivekananda rock memorial and giant statue of saint Tiruvalluvar erected on a rock in the year 2000. Kanniyakumari is the terminus for national rail & road sys­ tem. Tourism and fishing are the main vocations here. The region was part of Travancore state till the reorganization of states 1st November 1956 when it became part of Tamil Nadu. A globular lantern with wick lamp hoisted from a white in 1904 was the first light here. It remained in service for many years but it is not known when exactly it was discontinued. The present lighthouse tower was constructed during 1969-71. The optical equipment with electrical light source supplied by M/s.B.B.T, Paris was installed on this tower. The lighthouse was commissioned in November 1994. The main light source incandescent lamp 3000W 110V was replaced by 400W 230V metal halide lamp along with direct drive system in April 1999. References rz. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. nes Hornell, The Origins and Ethnological Significance Of Indian Boat Designs moirs of the Asiatic Society of Bengal Calcutta 1920 Re- issued by South ian Federation of Fishermen Societies, Trivandrum, 2002,pp. 1-74. B? Arunachalam, 'Technology of Indian Sea Navigation, Op.cit, p. 193. Henry Davison Love, Vestiges of Old Madras 1640-1800,vol-I, New Delhi, Mittal Publications, 1995, p. 281. K.N. Chaudhuri, Trade and Civilisation in the Indian Ocean An Economic History from the Rise of Islam to 1750, Cambridge, Cambridge University Press, 1985,pp. 141-144. Tapan Raychaudhuri and Irfan Habib, ed., The Cambridge Economic History of India, vol.c.1200 -1750, New Delhi, Cambridge University Press, 1982,P.132. Himanshu Prabha, 'Seafaring and Maritime Contacts: An Agenda for Historical Analysis', Journal of the Economic and Social History of the Orient, Vol. 39, No. 4,1996, pp. 422-431. Sathish Chandra, State, Pluralism, and the Indian Historical Tradition, Oxford University Press, 2008, p. 127. Y. Eyup Ozveren, 'Shipbuilding, 1590-1790', Review (Fernand Braudel Center), Vol. 23, No. 1, Commodity Chains in the World-Economy, 1590-1790,2000, pp. 15-86 Sanjay Subrahmanyam, The Political Economy of Commerce Southern India 1500-1650, New Delhi, Cambridge University Press, 2004,p.94. Ibid. Sinnappah Arasaratnam, Op.cit. p. 258. Sanjay Subrahmanyam, ' A Note on Narsapur Peta: A "Syncretic" Shipbuilding Centre in South India, 1570-1700', Journal of the Economic and Social History of the Orient, Vol. 31, No. 3 (1988), pp.305-311 Sinnappah Arasaratnam, Op.cit. p.260-61. Archibald Lewis, Op.cit, pp. 238-264. CHAPTER 20 1. 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New York: Perennial, 2000. 10. Beaver, Patrick. A History of Lighthouses. London: Peter Davies Ltd, 1971. 11. Berlitz, Charles, Charles Berlitz's World of the Odd and the Awesome, New York 1991. 12. Bhargava, MotiLal, Indian Ocean Strategies Through the Ages, with Rare and Antique Maps (New Delhi) 13. Blavatsky, H. P., Isis Unveiled: A Master-Key to the Mysteries of Ancient and Modern Science and Theology, 2 volumes. N. Y. 1877. 14. Bouvier, Hannah M., Familiar Astronomy, Philadelphia 1857. 15. Brugsch-Bey, Heinrich, Egypt Under the Pharaohs, History Derived Entirely From the Monuments, London 1902 16. Bunson, Margaret, The Encyclopedia of Ancient Egypt, New York 1991. 17. Burgess, Jas., The Buddhist Stupas of Amaravati and Jaggayyapeta in the Krishna District, Madras Presidency, surveyed in 1882, (a reprint), New Delhi 1996. 18. Butler, Alfred J., The Arab Conquest of Egypt and the Last Thirty Years of the Roman Dominion (a revised reprint of thel902 edition), Oxford 1978. 19. Caldwell Robert, History of Tinnevelly: from the earliest period to its cession to the English Government in A.D. 1801, Asian Educational Services, New Delhi, 2004. 20. Chand, Devi, TheAtharvaveda, New Delhi 2002. 21. Clayton, Peter A. & Price, Martin J., Seven Wonders of the Ancient World, London 1988. 22. Cooper, W. R., Primary Batteries, Their Theory, Construction and Use, London 1920. 23. Croft, Terrell, Practical Electric Illumination and Signal Wiring, New York 1917. 24. Crompton, Samuel, W; Rhein, Michael, J. The Ultimate Book of Lighthouses. San Diego, CA: Thunder Bay Press, 2002. 25. Crosthwaite, H., Ka, A Handbook of Mythology, Sacred Practices, Electrical Phenomena, and their Linguistic Connections in the Ancient Mediterranean World, Princeton 1992. 26. De Camp, L. Sprague, The Ancient Engineers, New York 1960. 27. Derr, Louis, Editor-in-Chief, Encyclopedia of Engineering, Vol. 5 of 5 Volumes, Chicago 1906. 28. 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