436
LABORATORYMEETING
with odorous substances. This did not distinguish between air-borne and contact chemoreception and it was body lice that were used. I n this apparatus, head lice were allowed to walk a fine copper wire, simulating a hair. At each end, they were presented with an odour carried in a slow current of air. They show preference for one end by eventually staying within the odour area at that end, but first explore the entire length of wire. Live examples of organochlorine insecticide resistant head lice were exhibited together with the apparatus for determining resistance.
Cholera---epidemiology and prevention I. P. CRAWFORD, G.M.
Royal Army Medical College Presentation showing: World incidence of cholera 1951-1968 projected to 1975 showing current upsurge. Map demonstrating spread of E1 Tor, 1960-1970 Epidemiology. Prevention presented diagrammatically and 'Military considerations.' All illustrated where appropriate with colour photographs.
Tropical histopathology G. C. G L E N N , M.C., U.S.A. AND D. M. WAYTE, R.A.M.C.
Royal Army Medical College A series of cases recently seen in the Army Histopathology Registry from Botswana, Tanzania, the Persian Gulf and the Far East, including kala-azar, granuloma inguinale, schistosomiasis, hepatocarcinoma, kwashiorkor, tuberculosis, chromoblastomycosis and filariasis.
Brucellosis and the Royal Army Medical Corps E T H E L W A L D E. VELLA
The Department of Pathology, Royal Army Medical College, Millbank It is said that Metchnikoff, in his bacteriology lectures at the Pasteur Institute, used to produce a world map and point out how the countries in which Malta fever was prevalent were those which formed part of the British Empire. "This is not due" he would explain, "to any evil influence of the British--it merely means that only the British have worked at Malta fever and learned how to diagnose it" (FREEMAN,1954). For 'British', substitute 'British Army Medical Officers' and his statement would still read true. The unfolding of the Brucella Story is delineated and illustrated with photographs of
the principal protagonists (MARSTON,VEALE,HUGHES,BRUCE,HORROCKS,KENNEDY, SMITH and WRIGHT),accompanied by appropriate excerpts from their classical work. (VELLA, 1963). a. Some original drawings and explanatory notes by Sir David and Lady Bruce, and b. Some glass-work demonstrating the ability of Sir Almroth E. Wright as a 'Master of Technique' were on display by courtesy of: (a) The Royal Society of Tropical Medicine and Hygiene. (b) The Wright-Fleming Institute.
REFERENCES FREEMAN, J. (1954). Quoted in Leonard Colebrook's Almroth Wright, p. 27. London: William Heinemann. VELLA,E. E. (1963). The (British) Army Medical Service and Malta Fever, Military Medicine, 128, 1076--1090.