Journal and Proceedings of The Royal Society of New South Wales Volume 107 Parts 3 and 4 [Issued 22nd January 1975] CONTENTS AUTHORS & TITLES Sims, K.P., Proper Motions of Variable Stars in the Sydney Astrogaphic Zone Lyons, M.T., Brooks, R.R. and Craig, D.C., Influence of Soil Composition on the Vegetation of the Coolac Serpentite Belt in New South Wales Hamilton, G., Hall G.C. and Roberts, John, Carboniferous Non-Marine Stratigraphy of the Paterson-Gresford District, New South Wales Hockley, J.J., Phonolite-Trachyte Spectrum in the Warrumbungle Volcano, New South Wales, Australia Rod, Emile, Structural Interpretation of New England Region Birch, A.J., Chance and Design: An Historical Perspective of the Chemistry of Oral Contraceptives [Liversidge Lecture 1974] Morris, S.A. and van der Poorten, A.J., Extremely Disconnected Topological Groups Pollard, J.P., Floppy Rulers and Light Pens-Reactor Mathematical Aids. Presidential Address, 3rd April, 1974 Cutler, Sir Roden, Address Delivered by His Excellency The Governor of New South Wales PAGES 49-66 67-75 76-86 87-89 90-99 100-113 114-115 116-121 122-123 Vol 107 pts 3-4, pp.49-66 Proper Motions of Variable Stars in the Sydney Astrographic Zone K.P. Sims Abstract. The relative proper motions(λαcosδ, λα) of 30 stars determined photographically are given together with absolute measures (μα cos δ, μδ) found by applying corrections for the parallactic motion of the reference stars and for the effects of differential galactic rotation. Return to Top Vol 107 pts 3-4, pp.67-75 The Influence of Soil Composition on the Vegetation of the Coolac Serpentinite Belt in New South Wales M.T. Lyons, R.R. Brooks, and D.C. Craig Abstract. Plants and soils from the Coolac Serpentinite Belt, New South Wales, were analysed for calcium, cobalt, chromium, copper, iron, potassium, magnesium, manganese, nickel and zinc, in order to establish plant-soil relationships for this area and also to evaluate those principal compositional factors of the soil, which affected plant distributions. Species analysed were Casuarina stricta, Ricinocarpos bowmanii, and Xanthorrhoea australis. Relationships for pairs of elements in soils showed a strong mutual association of elements of the iron family (cobalt, chromium, iron, manganese and nickel). Correlation analysis of vegetation alone, showed mutual antagonism to uptake of calcium and potassium and also iron and potassium. The only highly significant plant-soil association is for zinc in C. stricta and none of the other species therefore appeared to be useful in biogeochemical prospecting. Discriminant analysis of the soil data, showed that X. australis strongly favours soils high in magnesium and low in copper, whereas the distribution of C. strida appeared io be controlled mainly by the high potassium and nickel values in the soils. There is little evidence for any soil factors controlling the distribution of R. bowmanii. Return to Top Vol 107 pts 3-4, pp.76-86 The Carboniferous Non-Marine Stratigraphy of the Paterson~Gresford District, New South Wales G. Hamilton, G.C. Hall and J. Roberts Abstract. Non-marine units in the Paterson-Gresford district comprise part of the Flagstaff Sandstone and the classical succession of Gilmore Volcanics, Mt. Johnstone Formation, Paterson Voleanics and Seaham Formation. The units range in age from late Early Carboniferous to Late Carboniferous, and were deposited on a piedmont plain which gradually prograded northwards into a marine area of deposition. The Gilmore Volcanics are subdivided into the Newtown and Mowbray Formations (new names). Ignimbrites in the lower part of the sequence have been mapped out and defined as members. A non-marine portion of the Flagstaff Sandstone contains the Mount Rivers Ignimbrite Member (new name), the Newtown Formation the Martins Creek and Vacy (new name) Ignimbrite Members, and the Mowbray Formation the Breckin and Lambs Valley (new names) Ignimbrite Members. Erosion of the Lambs Valley Ignimbrite at the top of the Mowbray Formation and a change in sediment colour from red or purple in the Mowbray Formation, to yellow in the Mt. Johnstone Formation indicates a hiatus between the two units. Rocks in the Paterson-Gresford District are folded into basinal structures in the south-west near the Hunter Thrust, and into more open north-westerly trending folds in the north-east. Faults, which mainly have a steep reverse component, extend north-eastwards normal to the Hunter Thrust but swing towards the north at Gresford. Return to Top Vol 107 pts 3-4, pp.87-89 The Phonolite-Trachyte Spectrum in the Warrumbungle Volcano, New South Wales, Australia J.J. Hockley Abstract. The spectrum of salic magmas ranging in composition from phonolite to trachyte from the Warrumbungle Shield Volcano is attributed to high-level, low pressure crystal fractionation. Field, petrographic, mineralogical and chemical evidence all support the derivation of the phonolite-trachyte spectrum by differentiation of a range of nepheline and hypersthene normative alkali basalt parental magmas respectively. Rare xenoliths in the Breadknife trachyte are interpreted as fragments of a crystal accumulate formed in a high-level magma chamber. Rejuvenation of volcanic activity resulted in disintegration and incorporation of the accumulate in the Breadknife trachyte. No evidence to support an upper mantle origin for the phonolitetrachyte spectrum has been recognized. Return to Top Vol 107 pts 3-4, pp.90-99 Structural Interpretation of New England Region Emile Rod Abstract. As a result of a geologic study of the New England Region it appeared that many terms for newly proposed structural units in this region are ill-founded and more the expression of guesswork than an evaluation of established geologic observations. The fact that the age and relative position within the sequence of all those low-grade metamorphic rocks which make up the bulk of the rock units and are so characteristic for the eastern portion of the New England Region, are unknown or just a matter of conjecture, is not sufficiently emphasized in many recent publications. The New England Block and the Tamworth Fold Belt are the only two structural units which can be regarded as well defined and valid. Return to Top Vol 107 pts 3-4, pp.100-113 Chance and Design: An Historical Perspective of the Chemistry of Oral Contraceptives* A.J. Birch Abstract. The requirement of total synthesis of sex and cortical hormones is discussed in the historical context of evolution of ideas and techniques leading to biologically active analogues. In particular, the desire to make 18- and 19-norsteroids led to development of the technique of metalammonia reductions and eventually to the 19-norsteroid hormones used as oral contraceptives. This history is considered against a background of the role of chance and design in scientific research in general and pharmaceutical research in particular. *The Liversidge Research Lecture, delivered before the Royal Society of New South Wales, 15th August, 1974. Full Text Return to Top Vol 107 pts 3-4, pp.114-115 Extremely Disconnected Topological Groups Sidney A. Morris and Alfred J. van der Poorten Abstract. It is shown that a metrizable extremally disconnected topological space is discrete. The general result is applied to show that a non-discrete finitely generated nilpotent topological group with a subgroup topology is not extremally disconnected. Return to Top Vol 107 pts 3-4, pp.116-121 Floppy Rulers and Light Pens—Reactor Mathematical Aids John Pollard Presidential Address, April 3, 1974 Abstract. Much of the present day nuclear reactor mathematics is concerned with numerical methods which require the use of giant digital computers. Even as little as a quarter of a century ago sturdy rulers and ink pens were used as graphical aids in computation. These aids, or at least their computer analogues, still play a part in computation, although the present fashion is to used floppy rulers and light pens. Return to Top Vol 107 pts 3-4, pp.122-123 Review of Society’s Activities Sir Roden Cutler, V.C., K.C.M.G., K.C.V.O., C.B.E. Address delivered at the Society’s Annual Dinner, 20 March 1974 President and Members of the Royal Society of New South Wales, Ladies and Gentlemen: Thank you for your invitation to my wife and myself to join you at your dinner tonight in The Sydney Opera House. I think that this arrangement is an imaginative one, and no doubt Sir Philip Baxter would have been a supporter of the idea. The Opera House gives excitement and charm to Sydney and is an outstanding feat of architecture and scientific construction—a feat which you have recognized in your publication last year. This story of The Opera House and its complexities is, I think, of considerable interest, and no doubt will become a valuable item in your library, particularly to future members who will wish to look back on the challenge of constructing a building which stretched technology in some respects to its limit. I am also pleased to be here in the capacity of one of your two patrons, and am conscious of the close links between the Royal Society of New South Wales and the Governors of this State since you first formed the Philosophical Society of Australasia on the 4th July, 1821, and asked the incoming Governor, Major-General Sir Thomas Brisbane, on the 14th November of that year to accept the Presidency of the infant body. It is interesting to note that Brisbane had only arrived in the Colony a week before, on the 7th November, and he must have replied immediately to the Society’s letter of the 14th, because he accepted two days later and attended his first meeting on the 2nd January, 1822. Today the rules of vice-regal patronage would prevent a governor accepting the invitation of such a newly formed body, no matter how learned its members and how estimable its aims. Brisbane, of course, was noted for his interest in astronomy, an interest which he developed after nearly being involved in a shipwreck in 1795. In 1808 he built at Brisbane House, the second observatory in Scotland, and had been a member of the Royal Society of London since 1810. His friend, Arthur Wellesley, the Duke of Wellington, when asked about Brisbane on one occasion replied that he “kept the time of the army”. He was, however, a competent officer, and as Governor introduced a number of reforms in the Colony. He experimented in the growing of Virginian tobacco, Georgian cotton, Brazilian coffee and New Zealand dax, but without much success. He had much more success in commencing an observatory at Parramatta near his residence, and was obviously the man to be offered the Presidency of the Society. It is interesting that he equipped the observatory at his own expense, buying books and instruments, and engaging two astronomical assistants, Charles Runiker and James Dunlop. Brisbane took a detailed interest in your Society, to such an extent that when it was proposed that a commemorative tablet be erected at Kurnell to mark the point of landing of Cook, he made two special trips from Parramatta to Sydney, but on the first occasion, Botany Bay was too rough to risk a crossing from the north to the south shore, and so apparently the Governor and members of the Society had a picnic lunch and decided to return a week later. On this occasion the weather was favourable and the tablet was affixed to a rock on the shore above sea level. The inscription said : “Under the Auspices of British Science, these Shores were Discovered by James Cook and Joseph Banks, the Columbus and Myecaenas of their time. This spot once saw them ardent in the pursuit of knowledge. Now, to their memory, this tablet is inscribed in the first year of the Philosophical Societv of Australasia”. I don’t know whether the Plaque is still there, but I attended the Cook Bi-Centenary Celebrations at Kurnell in 1970 and did not remember any reference to the plaque. The Founding Society was very firm in its rules, and laid down that each of its original seven members had to produce a monthly paper under penalty of £10; no refreshments were to be introduced except tea and coffee under penalty of £5; the Society was to meet every Wednesday at each other’s house in Sydney in rotation, and if not present within a quarter of an hour of the time of seven o’clock there was a fine of five shillings. Mr. Wollstonecrait was excused from one meeting because of attendance at a friend’s funeral in the country, but was fined when he accepted the Governor’s invitation to dine at Government House rather than fulfil his obligation to attend a meeting. Whether or not this reached the Governor’s ears I do not know, but for the July meeting in 1822, the Governor invited all members of the Society to dinner to mark the anniversary. The Philosophical Society of Australasia ceased to function early in 1823, apparently because colonial politics, particularly concerning free settlers and emancipists, and Brisbane’s instructions following upon Commissioner Biggs’ inquiry into affairs of the Colony left, in the words of a member, Barron f(F)ield, “A baneful atmosphere of distracted politics” in which the Society “soon expired”. There was a revival on the 19th, January, 1850, when Charles Nicholson and Henry Grattan Douglass founded the Australian Philosophical Society with the object of encouraging such research as should help in developing the Colony’s material resources. Obviously the Society’s name was causing some difficulty, because in June of that year it was changed to “Australian Society”, and again in August to the “Australian Society for the encouragement of arts, science, commerce and agriculture”. It is no wonder that with a name like that the Society ceased to function after five years, in 1855. Again, it was probably due to the encouragement of the then Governor that the Society was reformed as the Philosophical Society of New South Wales on the 30th July, 1855. Sir William Denison, who was an engineer of some merit, read a paper at the first meeting entitled “The development of the railway system in England, with suggestions as to its application to the Colony of New South Wales”. He continued to write articles for the Philosophical Society, and indeed regarded this activity as compensating for what he described as the “work (of the Government) being taken out of my hands” by the formation of a Legislative Council. I should not have thought that my distinguished predecessor was a man of humour, but one of the papers which he read was “On the dental system of mollusca”. (It occurs to me that I might read this paper if I am ever asked again to the oyster farmers’ luncheon.) He also took a great interest in the grounds of Government House and sought the advice of Professor John Smith of Sydney University, and one of the members of the Society’s council, as to the composition of the soil in the Government House gardens and what fertilizers should he used. The Society holds a letter which Sir William Denison wrote to the Professor in October, 1858, in which he solemnly (and perhaps again without humour) sent “Dear Smith” several bags of soil and invited him to dine at Government House to discuss the matter. The Philosophical Society of New South Wales was said to be in a “languishing condition” in 1865, and therefore in November of that year the members sought permission to change the name to “Royal Society of New South Wales”, and again this would have involved the Governor, Sir John Young, in obtaining Royal consent in September, 1866. In 1881 an Act of Parliament of New South Wales incorporated the Society. From that day the Society has continued its learned work and investigations, and I think that one of its most valuable functions has been the keeping of a library. The papers which are written by its members are carefully filed and are available with other books and documents for study and reseach. The Royal Society of New South Wales may not be as widely known as it deserves, nor may its functions be fully understood. However, there is encouragement in the fact that in the last year your membership has increased by 60 to 402, and it must be remembered that the real value of your Society is in the learned qualifications of your membership, not in the total number. The medals which you award are held in high regard, and include the Clarke Medal, which has been given for the last 96 years for work in the field of natural sciences. There are others, such as the Walter Burfitt Medal for contributions to science and, since 1947, The James Cook Medal for contributions to science and human welfare in the southern hemisphere. The medal named after Edgeworth David is awarded to younger scientists for contributions in learning. These medals are a valuable source of encouragement to workers in these fields. The purpose of the Society becomes increasingly important over the years, and in essence I should think your object is to make the public aware of the contributions of science and its influence on everyday affairs. The rapidly increasing fields of scientific study and the proliferation of scientific knowledge in recent years almost makes it an impossible task for the Society to keep the public informed. Scientific investigations and discoveries in the last 25 to 30 years have both excited public imagination and at the same time occasionally frightened the public. The Society’s task is to bring a balance into people’s assessment of the advantages and limitations of scientific progress. You need to encourage research and investigation, and occasionally express a word of warning. It is, as I said, a pleasure to be with you tonight as one of your patrons. I compliment you on the work which you are doing. Thank you for the dinner and thank you for your good sense in not asking the Governor these days to read learned treatises for you.