79 



from yellow fever cases {Leptospira icteroides) also conformed, under 

 certain conditions, to the known characteristics of the yellow fever 

 virus in relation to mosquito transmission. 



Symptoms and lesions closely resembling those of yellow fever 

 in man may be induced in guinea-pigs by the bite of female examples 

 of Stegomyia that have previously sucked the blood of a yellow fever 

 patient or an animal experimentally inoculated with L. icteroides. 

 The optimum temperature at wliich this organism remains viable 

 for many months is 26° C. (78° F.), so that most tropical countries 

 offer suitable conditions both for it and for the mosquito that carries 

 it. 



Ford (T. A.). Notes on Veterinary Practice in the West Indies and 

 the Malay States.-- Fe^. JL, London, Ixxv, no. 8, August 1919, 

 pp. 45-54, (Abstract in Trop. Vet. Bull., London, vii, no. 4, 

 30th December 1919, pp. 267-271.) 



In Antigua the numerous ticks found infesting cattle are of two 

 kinds, a small species of Ixodes and Amhlyomma variegatum (St. Kitts 

 or " gold " tick). 



Bevan (LI. E. W.). Inoculation of Cattle against Redwater and 

 Gall-Sickness, ~i2/iO(7e.Sfa Dept. Agric, Salisbury, Bull. 316, 

 April 1919, 10 pp. 



It is estimated that in Southern Rhodesia the losses due to the 

 diseases caused by infestation with blue ticks [Boophilns annulatus 

 decoloratus] exceed £500,000 a year. The total eradication of the 

 ticks by systematic and universal short-interval dipping will probably 

 eventually eliminate these losses. 



Hayashi (N.), Muskoyama (— ) & Oshima (— ). Tsutsugamushi 

 Disease : Results of Investigation in 1918.-— Japan Med. World, 

 Tokyo, 29th June 1919. (Abstract in Jl. Amer. Med. Assoc, 

 Chicago, III., Ixxiii, no. 6, 9th August 1919, p. 454.)' 



From one area infected with Japanese river fever as manyTas 

 possible of the mites suspected as vectors were collected ; three differ- 

 ent forms of them were found, but only one was able to transmit 

 the infection. These mites infest field voles, domestic fowls and a 

 bird, Acrocephalus orientalis, which must be responsible for the spread 

 of infection over a wide area. Preventive measures include the 

 extermination of these hosts, the use of overalls in field work, soil 

 disinfection and the application of insecticides to the exposed parts 

 of the body. 



SwELLENGREBEL (N. H.). M6thode de Recherche de rares Parasites 

 du Paludisme dans le Sang p6riph6rique. .Bw/Z. Soc. Path. Exot., 

 Paris, xiii, no. 1, 14th January 1920, pp. 20-22. 



In the course of investigations on the transmission of malaria by 

 Anophelines in Malaya, it has been found that the method of culture 



