CO885-(26N14) — Page 367

302

PUBLIC RECORD OFFICE

سات سياسيا

Co

Reference :-

1

!

885/26

PUBLIC RECORD OFFICE, LONDON

ALLY WITHOUT PERMISSION OF THE BE REPRODUCED PHOTOGRAPHIC-

COPYRIGHT PHOTOGRAPH-NOT TO

46

No advanced courses have been held, since the number of entries in any instance has not reached the established minimum, but individual students have from time to time received particular instruction on definite problems of Medical Entomology. The collection of preparations for teaching purposes has been considerably Increased, and some select additions have been made to the School Museum. The Miscellaneous collection of insects available for special and advanced study has been put in order in a new cabinet.

A successful expedition was made to Romney Marsh during the Easter vacation to study the incidence and distribution of Anopheles mosquitoes there, and to arrange a depot for collecting these and other insects, etc., continually required in the classes.

The report by Dr. F. W. O'Connor, lately Assistant Medical Entomologist, on the expedition to the Western Pacific has been published and distributed. It will be remembered that the main incentive to this expedition was a statement, made on medical authority, affirming the wonderful efficacy of salvarsan in the treatment of filariasis; and that Dr. O'Connor was sent to Funafuti to investigate this matter as the foremost item in a medical survey of the filaria-infested islands in that vicinity. Although his report completely extinguishes any hopes that may have been fired by salvarsan and similar drugs, it supplies a critical and coherent account of the nosology and parasitology of the Ellice, Tokelan, and principal Samoan Islands and will be a valuable guide to future workers in the same field. In the course of his survey Dr. O'Connor assured himself that Acdes variegatus (Stegomyia pseudoscutellaris) is the sole species of mosquito implicated in the dissemination of filariasis in the islands mentioned, defined all the breeding-places of the insect, and showed by a practical experiment how easily it can be controlled. He also had an opportunity of following the early stages of filarial invasion in man through the agency of the mosquito.

The following donations have to be acknowledged:-From Dr. B. R. Neligan, mosquitoes from Persia; from Mr. F. Ware, Indian Civil Veterinary Department. blood-sucking flies; from the Zoological Survey of India, venomous snakes and fishes: from Dr. Tertius Clarke, Malayan ticks attacking man; from Mr. Clifford Dobell. F.R.S., and Professor Miyajama, Japanese Trombinlæ concerned in the dis- semination of Tertsugamushi disease: from Dr. A. R. Patterson, rats of Kenya Colony; from Mr. A. W. J. Pomeroy, Nigeria, parasitic Orthoptera and their host; and from Dr. G. M. Vevers specimens of warble maggots.

Information and assistance has been given to correspondents in many parts of the world.

30th April, 1923.

SIR,

A. ALCOCK, Professor of Medical Zoology.

Director of Entomology.

Enclosure 2 in No. 11.

REPORT OF THE DIRECTOR OF HELMINTHOLOGY FOR THE HALF-YEAR ENDING 30TH APRIL, 1923.

I HAVE the honour to submit a Report on the work of my Department for the half-year ending 30th April, 1923.

Staff. Several changes have taken place in the personnel of the Department during the past six months. Dr. G. M. Vevers was appointed Superintendent of the Zoological Gardens. Dr. J. Anderson was appointed Professor of Medicine in the University of Hongkong, and Dr. Khalil, who for the past three years has been attached for special training in the Egyptian Educational Mission, left to take up an important Research appointment in Cairo under the Egyptian Government. .I have also to report with very deep regret the death of Mrs. Markbreiter, who has worked, chiefly in a voluntary capacity, in conjunction with this Department for several years. Dr. II. H. Scott and Dr. W. Y. Turner have been appointed as Demonstrators filling vacancies in the Medical Section, and Mr. D. O. Morgan has, by arrangement with the Ministry of Agriculture, been added to the Research Scheme maintained here under their auspices.

Teaching. Two courses of Medical Helminthology, each extending over a period of three weeks, have been given during the period under review.

47

Collections. The arrangement whereby one or other member of the staff visits the Zoological Gardens daily to collect parasites from the animals there has been continued.

-

Publications. (a) The catalogue of Periodical Literature of Medicine and Agriculture which has been compiled under the auspices of the British Medical Association has been completed and is now in the press.

(b) Part 3 of "Collected Papers," published from this Department, was issued in March and contained the ten original communications, which had appeared in various scientific, journals during the previous six months.

a

(c) In view of the difficulty of securing an early publication of Research Work "Journal of Helminthology "has been commenced, and the first number was issued in March, 1923. It is intended to continue this journal in five bi-monthly parts during the year to provide for the prompt appearance of original communications by the Staff and Associated Workers of the Department. A copy of the first number including five papers is enclosed with this report.

(d) The report on the expedition to British Guiana is nearing completion. A considerable portion of it was set in type prior to the departure of Dr. J. Anderson for the Far East at the end of April."

I have, &c.,

15th May, 1923.

Enclosure 3 in No. 11.

R. T. LEIPER.

REPORT BY ANDREW ROBERTSON, M.B., CH.B., ASSISTANT IN PROTOZOOLOGY, LONDON SCHOOL OF TROPICAL MEDICINE, FOR THE HALF-YEAR ENDING 30TH APRIL, 1923.

DR. J. G. Thomson, Director of Protozoology, returned to Rhodesia on 3rd March to continue the work he did there last year. The expedition was for the purpose of investigating blackwater fever, and was on behalf of the British South Africa Company and the London School of Tropical Medicine. Before leaving Dr. Thomson gave the Spring Course in Protozoology, which is part of the curricu- lum of the School of Tropical Medicine.

Two candidates were presented for the examination in October-November, 1922, for the degree of B.Sc. Hons. in Zoology with Protozoology (special reference to the pathogenic forms) as the special subject. Both candidates qualified with second- class honours. Dr. Thomson was appointed examiner for this degree by the University of London. At present one candidate for this degree is receiving tuition in this Department, and will be presented for examination in October this year.

Miss M. J. Triffitt, B.Sc., who received training in methods of research under a maintenance grant from the Industrial and Scientific Research Department of the Privy Council last year, has continued the researches on which she was engaged, and these she proposes to submit as a thesis for the M.Sc. degree.

In November, 1922, a case of human infection with Isospora hominis was pub-. lished. The main feature of this case was the fact that the patient probably became infected in Durban, South Africa, although the diagnosis was not made until the patient arrived in this country. Several cases of infection with this parasite have been reported in South Africa, but none, so far as we are aware, in the coast region. It is important that all factors which increase our knowledge of the geographical distribution of Isospora hominis be duly noted. Attention was drawn to the presence of Charcot-Leyden crystals in the fæces of this patient in whom no Entamoba histolytica had ever been found, although their presence had by no manner of means been excluded.

Working together, Drs. Thomson and Robertson found in a specimen of human fæces the oocysts of Eimeria oxyspora. This is the third occasion on which this coccidian parasite of man has been described. The previous work on the morphology was confirmed and attention was again drawn to the similarity of Eimeria snijdersi, Dobell, 1921, to Eimeria oxyspora. Many of the ooccysts in this case had a decided resemblance to the forms described by Dr. Snijders.

Two cases of infection with Dientamœba fragilis, Jepps and Nobell, 1917, have been found. The first of these is in course of publication as a joint communication by Drs. Thomson and Robertson; the second will be reported as soon as it has been worked out. These two cases respectively make the ninth and tenth occasions on which D. fragilis has been noted.

47

302

'he arrangement whereby one or other member of the staff visits dens daily to collect parasites from the animals there has been

- (a) The catalogue of Periodical Literature of Medicine and has been compiled under the auspices of the British Medical n completed and is now in the press.

'Collected Papers," published from this Department, was issued ained the ten original communications, which had appeared in Jurnals during the previous six months.

the difficulty of securing an early publication of Research Work ainthology" has been commenced, and the first number was issued

It is intended to continue this journal in five bi-monthly parts provide for the prompt appearance of original communications sociated Workers of the Department. A copy of the first number rs is enclosed with this report.

on the expedition to British Guiana is nearing completion. A n of it was set in type prior to the departure of Dr. J. Anderson t the end of April.

I have, &c.,

R. T. LEIPER.

PUBLIC RECORD OFFICE

Enclosure 3 in No. 11.

ROBERTSON, M.B., CH.B., ASSISTANT IN PROTOZOOLOGY, LONDON CAL MEDICINE, FOR THE HALF-YEAR ENDING 30TH APRIL, 1923. homson, Director of Protozoology, returned to Rhodesia on 3rd the work he did there last year. The expedition was for the ating blackwater fever, and was on behalf of the British South nd the London School of Tropical Medicine. Before leaving the Spring Course in Protozoology, which is part of the curricu- f Tropical Medicine.

s were presented for the examination in October-November, 1922, .Sc. Hons. in Zoology with Protozoology (special reference to the as the special subject. Both candidates qualified with second- r. Thomson was appointed examiner for this degree by the on. At present one candidate for this degree is receiving tuition

and will be presented for examination in October this year. iffitt, B.Sc., who received training in methods of research under it from the Industrial and Scientific Research Department of the year, has continued the researches on which she was engaged, and o submit as a thesis for the M.Sc. degree.

1922, a case of human infection with Isospora hominis was pub-. feature of this case was the fact that the patient probably became

South Africa, although the diagnosis was not made until the his country. Several cases of infection with this parasite have uth Africa, but none, so far as we are aware, in the coast region. t all factors which increase our knowledge of the geographical pora hominis be duly noted. Attention was drawn to the presence crystals in the fæces of this patient in whom no Entamœba been found, although their presence had by no manner of means

her, Drs. Thomson and Robertson found in a specimen of human f Eimeria oxyspora. This is the third occasion on which this of man has been described. The previous work on the nfirmed and attention was again drawn to the similarity of Dobell. 1921, to Eimeria ozyspora. Many of the ooccysts in this resemblance to the forms described by Dr. Snijders.

fection with Dientamœba fragilis, Jepps and Dobell, 1917, have rst of these is in course of publication as a joint communication nd Robertson; the second will be reported as soon as it has been two cases respectively make the ninth and tenth occasions on as been noted.

Reference :-

885/26

COPYRIGHT PHOTOGRAPH—NOT TO

PUBLIC

RECORD OFFICE, LONDON ALLY WITHOUT PERMISSION OF THE BE REPRODUCED PHOTOGRAPHIC-