FIELD WORK 339 1967, activities were concentrated on the west-east axis between Disko Bugt and Cecilia Nunatak; in 1968 the emphasis will be on that between "Point Nord " and " Point Sud". Two stations were occupied: one for studies of cosmic rays and meteorology at "Carrefour", and one for meteorology only at "Station Jarl-Joset", though work was interrupted at the latter due to electrical failures. Geodesy. Two field parties covered the length of the axis between Cecilia Nunatak and Camp VI, travelling in opposite directions and thus each checking the others' measurements. Geophysics. A field party operated between "Camp VI" and "Depot 420" carrying out a programme of seismology, gravimetry, magnetism, barometric and temperature measurements. An under-ice profile was run between "Milcent" and "Camp VI" by radar. Glaciology. Specimens of ice for 14C-dating were collected, and ablation measurements made, on the west coast and at "Camp VI". Scientific personel, EGIG, 1967 P.-E. Victor, leader of expedition R. Guillard, chief of operations Geodesy, Group A K. Nottarp, leader F. J. Heimes One radio operator and one mechanic Geodesy, Group B L. Faivre, leader P. Frenay B. Gibon Geophysics C. Marinier, leader H. Allnoch H. Kohnen A. Karsten H. Wagner J. C. Pignac J. Vidal One radio operator F. Thyssen H. Wilcke One electrician Glaciology H. Oeschger B. StaufTer H. Clausen One mechanic Meteorology O. Reinwarth J. P. Renard One mechanic Cosmic rays W. Ambach G. Marckl One mechanic Two. transport groups, led by R. Guillard and J. Volot; one helicopter group under Lieutenant J. C. Marescot, l'Armee de l'Air Franchise; and a group of four Nord 2501 aircraft from Armee de l'Air Franchise. R. L. PLAISTED EXPEDITION TO THE NORTH POLE, 1968 [Summarized from information supplied by the Selz Organization, Incorporated. A note on the unsuccessful effort of the party to reach this goal in 1967 appeared in the Polar Record, Vol 14, No 88, 1968, p 47.] R. L. Plaisted led a successful expedition from a base on Ward Hunt Island to the North Pole in March-April 1968, the journey beginning on 7 March and ending forty-three days later, on 19 April. Downloaded from http:/www.cambridge.org/core. IP address: 78.47.19.138, on 02 Oct 2016 at 17:58:50, subject to the Cambridge Core terms of use, available at http:/www.cambridge.org/core/terms. http://dx.doi.org/10.1017/S0032247400059210 340 FIELD WORK The party, with four twin-ski, 16 hp, Ski-Doo Snowmobiles, travelled 1320 km to cover the crow-flight distance of about 760 km owing to a variety of hazards. Ice conditions were difficult with, in the early stages of the journey, pressure ridges of up to 15 m to get past and, in the later stages, numerous open leads appearing and causing delay in the march. The day after the party reached the North Pole their position was confirmed by a United States Air Force weather reconnaissance aircraft. The expedition's Otter support aircraft evacuated the party to Ward Hunt Island. The full complement of the expedition was: R. S. Plaisted, leader; D. E. Powellek, deputy leader, radio-electronics, A. C. Aufderheide, medical officer, photography; J. L. Bombadier and W. H. Pederson, mechanics; and G. R. Pitzi, navigation. At the time when the party reached the North Pole, Aufderheide and Powellek were back at base, having returned by support aircraft to "work on photographic and electronic problems". ARGENTINE ACTIVITIES IN THE ANTARCTIC, 1966-67 [Summarized from information provided by the Argentine Government under the terms of the Antarctic Treaty, and by the Instituto Antdrtico Argentine Accounts of previous activities appeared in the Polar Record, Vol 13, No 86, 1967, p. 611-14.] Relief and re-supply operations were carried out by the icebreaker General San Martin and the transport Bahia Aguirre of the Grupo Naval Antartico. Aircraft used included four Albatross, three C-47, one Neptune, one DC-4, four Beaver and two H-19 helicopters. Stations. The following were occupied throughout the year: "Orcadas" (Naval) Laurie Island, South Orkney Islands; "Decepcion" (Naval), Deception Island; "Almirante Brown" (Instituto Antartico Argentino), Coughtrey Peninsula, Danco Coast; "Esperanza" (Army), Hope Bay; "General Belgrano" (Army), Filchner Ice Shelf; "Teniente Matienzo" (Air Force), Larsen Nunatak, Seal Nunataks; "Alfarez de Navio Sobral" (Army) Filchner Ice Shelf. A new station, "Petrel" (Air Force and Naval), was opened on 22 February 1967 in lat 63° 28' S, long 56° 17' W, on Dundee Island. The object of this installation appears to be to support an investigation into the possibility of constructing a solid earth runway on the island. Reconstruction work, and the installation of new facilities, continued at " Almirante Brown" and "General Belgrano" stations. Field work Biology. Ornithological observations were made at "Almirante Brown", "Decepci6n" and "Orcadas", as well as during re-supply voyages. Marine biological specimens were collected from the Hope Bay area. Some work on human physiology was done at "Almirante Brown", "Esperanza" and "Teniente Matienzo". Meteorology. Surface observations continued from all stations except "Petrel", and from re-supply ships. Glaciology. Routine ice and snow studies continued at all stations, particularly at "Petrel" in connexion with the suggested runway. Upper air physics. Auroral observations continued at "Orcadas", "Decepcion", "Almirante Brown", "General Belgrano", and "Sobral"; ionospherics at "Decepcion" and "General Belgrano"; radio-activity at "Decepcion" and "Almirante Brown". Air photography. Air photographs were taken of the Larsen Ice Shelf for the Instituto Geografico Militar and for use in Derrotero Aerondutico Antartico. Downloaded from http:/www.cambridge.org/core. IP address: 78.47.19.138, on 02 Oct 2016 at 17:58:50, subject to the Cambridge Core terms of use, available at http:/www.cambridge.org/core/terms. http://dx.doi.org/10.1017/S0032247400059210