Calendar: 1973-1974 Page 459

lxxxvi Annual Report of the Delegacy Professor Arthur was Visiting Research Professor to the Tick Re- search Unit at Rhodes University for year from January 1972 under grant from the Rhodes University Foundation Trust He was elected Fellow of King's College He lectured on aspects of pollution to the National Defence College and to the School of Biology at Rhodes University and gave summing-up paper on the estuarine environment at the Foundation Symposium of the Estuarine and Brackish Water Association Invited papers on various aspects of ticks were read at the Annual Congress of the South African Mohair Growers Association at Port Elizabeth and at the South-Eastern Cape Entomological Society at Grahamstown Other lectures on applied aspects of tick research were given at Bathurst Carlisle Bridge Fort Brown and Albany Dr Cox took over as Acting Head of the Department in January 1972 during Professor Arthur's absence in South Africa He gave course of lectures on Immunology in the Biochemistry Depart- ment of Queen Elizabeth College and gave lecture on immunity to blood parasites as part of course on 'Recent developments in parasitology' at the North-East London Polytechnic He was appointed Moderator in Biology and Zoology for the University of London School Examinations Board Dr Cox gave lectures on Systematics and plate tectonics in the spread of marsupials' at the Joint Geological Society Palaeontological Association and Systematics Association Symposium on 'Systematics and plate tectonics' at Cambridge in December 1971 and on 'The distribution of Triassic terrestrial tetrapod families' at the Advanced Study Institute on 'Continental drift sea-floor spreading and plate tectonics-implications for the earth sciences' at Newcastle in April 1972 From July to September 1972 he visited North-eastern Brazil on palaeontological expedition financed by the Royal Society Dr Pye was elected to the Professorial Board of King's College as representative of the Science Faculty Non-Professorial Staff and to the Publications Committee of the Zoological Society of London He gave invited lectures to the Department of Biology University of Kent at Canterbury the Physics Society University College of Wales Aberystwyth one-day course at Senate House run by the Joint Biology Committee the Biol course at Sir John Cass College the Smithsonian Tropical Research Institute in Canal Zone Panama the Central Institute for the Deaf St Louis Missouri and the Department of Biology Washington University St Louis Missouri He also