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(2) A single examination in forty-one cases was made. All that can be said is that infections of the various protozoa exist among such persons as University and school cadets.
out of
Cases of acute amoebic dysentery in Asylum patients never England. By A. Malins Smith. Annals of Tropical Medicine and Para- sitology, Volume XIII., No. 2.
Five hundred and four Asylum patients have been examined for intestinal protozoa. Fifty-nine of these had acute dysentery, and in three of the cases vegetative E. histolytica were found in the stools.
All the usual protozoa were found in the stools, but the infections were dis- tinctly less numerous than in the patients of the Asylum previously examined.
The phagocytosis of erythrocytes by an amoeba of the Limax type. By W. Yorke and J. W. S. Macfie. Annals of Tropical Medicine and Parasitology, Volume XIII., No. 2.
Experiments show that although no phagocytosis of erythrocytes is obtained by merely incubating a mixture consisting of a scraping of an amoeba culture and blood, yet under conditions more favourable for the growth and metabolism of the amoeba active phagocytosis does occur.
Yorke. and Macfie have published two more papers on the Strongylidæ of horses :-
VII-Cylicostomum pateratum, sp.n.
and Parasitology, Volume XIII., No. 1.
Annals of Tropical Medicine
VIII.--Species found in American horses. Medicine and Parasitology, Volume XIII., No. 2.
Annals of Tropical
Other papers published by members of the staff include:-
Note on a case of multiple infection by Dracunculus medinensis. By B. Blacklock and W. R. O'Farrell. Annals of Tropical Medicine and Para sitology, Volume XIII., No. 2.
New Laboratories.
The new buildings of the School in Pembroke Place have been used since 1916 as a military hospital for the treatment of soldiers suffering from tropical diseases. The hospital has now been evacuated, and the school laboratories will shortly be transferred to Pembroke Place.
Sierra Leone Laboratory.
Arrangements are in progress for the erection of the Research Laboratory on Tower Hill, Freetown.
Manaos Research Laboratory.
During the visit of the Director, Dr. Wolferstan Thomas, to this country, arrangements have been made for increasing the research staff of the Manaos Laboratory. Three Assistants, Drs. Burnie, Young, and Gordon, have been appointed, and, after a period of training in the Liverpool Laboratories, will proceed to Brazil.
Mary Kingsley Medal.
For the year 1919 awards have been made to Dr. J. W. S. Macfie, of the West African Medical Service, for his devotion to science, and to the Oswaldo Cruz Institute in recognition of the scientific work of the founder, the late Dr. Oswaldo Cruz.
We are, &c.,
J. W. W. STEPHENS,
Professor of Tropical Medicine.
Warrington YORKE,
Professor of Parasitology.
SIR,
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Enclosure 2 in No. 20.
The Incorporated Liverpool School of Tropical Medicine,
H.24, Exchange Buildings, Liverpool, 1st November, 1919. Department of Medical and General Economic Entomology.
I HAVE the honour to submit a report on the work done by the members of the staff of this department, for the half-year ending 31st October, 1919.
Lectures and Demonstrations.—A full course of instruction was given to the students attending this School during the Lent term for the Diploma in Tropical Medicine; the second course, which commenced on 22nd September, is in progress. A special course of instruction was also given to the students of the Veterinary Department during the summer term; three lectures to the undergraduates in the Zoology Department; and a special advanced course on pathogenic ticks (Ixodoidea) during the month of March.
Research.-During the month of May the Chief Assistant (Mr. H. F. Carter) made a critical study of certain groups of mosquitoes and other blood-sucking midges in the National Collection at the British Museum; he has also, in conjunction with Dr. B. Blacklock, Miss Alwen M. Evans (Assistant Entomologist), and Miss M. Brown (Laboratory Assistant) devoted a considerable amount of time to an investi- gation of the breeding-places and other natural haunts of the Anophelina mosquitoes in the neighbourhood of Liverpool and elsewhere. Furthermore, the experimental infection of laboratory-bred adults of Anopheles plumbeus with the parasite of simple tertian malaria was obtained, and the sporozoites demonstrated in the salivary glands; the investigation is being continued by Dr. Blacklock and Mr. Carter.
The investigation in connexion with the Royal Society's Grain Pests (War) Committee in reference to the storage of grain and flour, has been continued by Mr. H. M. Morris and the Professor of Entomology. A further report is in
progress.
Identification of Insects. The total number of specimens received and determined was considerably over 13,700. Dr. Guy A. K. Marshall, Imperial Bureau of Entomology, submitted collections of the following groups: Coccida (scale insects) from the Canary Isles, British East Africa, British Guiana, and Jamaica; Phlebotomina (Papataci flies) from the Gold Coast, Macedonia, and Palestine; Ceratopogonina and Acari in flour from Accra. The Belgian Colonial Office, per Dr. J. W. Schwetz, has forwarded several thousand tsetse flies (Glossina), Major J. A. Sinton, V.C., I.M.S., Phlebotomina from North-East Persia, and the North-West Frontier Province of India; Captain P. A. Buxton, R.A.M.C., and Captain H. W. Leathar, R.A.M.C., Phlebotomina from Mesopotamia. Two papers by the Professor of Entomology relating to the above-named collections, and also one by Mr. Carter on the blood-sucking Nematocera, are in the press.
Publications. Mr. H. F. Carter, in conjunction with the Professor of Tropical Medicine (Professor J. W. W. Stephens, M.J).) and other members of the staff, has published "Studies in the Treatment of Malaria" (Nos. XXII-XXX), of which details are given elsewhere in this report.
Mr. H. F. Carter, jointly with Dr. B. Blacklock, has also published a note on "The Experimental Infection in England of Anopheles plumbeus, Hal., with Plasmodium vivax (Sporozoites in Salivary Glands)" (Preliminary note). Annals of Tropical Medicine and Parasitology, Volume XIII., No. 2, p. 187.
I am, &c.,
ROBT. NEWSTEAD, Professor of Medical and Economic
Entomology.
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