217 



Mesnil (F.) & RouBAUD (E.). Essais d'Inoculation du Paludisme au 



Chimpanz6. — Ann. Inst. Pasteur, Paris, xxxiv, no. 7, July 1920, pp. 

 466-480, 1 plate. [Received 4tli October 1920.] 



The exibtence of mammals, other than man, capable of harbouring 

 the virus of human malaria under natural conditions has not yet 

 been determined. 



Chimpanzees have been inoculated experimentally with Plasmodium 

 vivax, but although these apes may be slightly susceptible to the 

 •disease, their role as natural carriers still remains to be proved. 



WiLHELMi (I.). Zur Klimatheorie des Problems der Kriebelmucken- 

 plage. [The Climate Theory in Connection with the Simulium 

 Pebt.J — Deutsche Ticrdrztl. W ochcnschr ., Hanover, xxviii, no. 40, 

 2nd October 1920, pp. 470-471. 



The author has suggested that outbreaks of Simulium are caused 

 by the somewhat sharp change of temperature in spring in regions with 

 ^ continental chmate, or, in a certain degree, in regions with a transi- 

 tional cHmate. The losses among cattle are indeed confined to such 

 regions. Such losses are conspicuous by their absence in the British 

 Isles, where SimuUids are abundant, but a sea chmate obtains. The 

 present article contains data gathered in Germany in 1920 that appear 

 to support this view to some extent. 



Stedefeder ( — .). Zur Frage der Viehverluste durch Kriebelmucken 



{Simulium reptans). [Regarding the Losses among Cattle due to 

 S. reptans.] — Berliner Tierdrztl. Wochenschr., 1920, p. 15. 

 (Abstract in Deutsche Tierdrztl. Wochenschr., Hanover, xxviii, 

 no. 40, 2nd October 1920, p. 472.) 



During very warm weather in September 1919 the author observed 

 •among cattle some cases that led to compuLory slaughtering. The 

 symptoms were similar to those caused by Simulium reptans near 

 Hanover. No insect was found. 



From the aetiological standpoint it is important that the swollen 

 lymphatics of the neck contained bi-polar bacteria ; it is considered 

 possible that infection was conveyed by mosquito bites. 



Medical Entomology. — Nigeria {Southern Pronmces) ; Ann. Med. & 

 Sanit. Rept. 1918, Lagos, 1920, pp. 95-97. 



A list is given of biting flies from various stations, w^ith notes on 

 the breeding-places of the mosquitos found. One female of Chrysops 

 silacea was found to be heavily infected with Filaria, 371 larvae in 

 all being dissected from it. A species of Trial mia {Conorhinus), the 

 bite of which resulted in acute lymphangitis, was also received. 



Stegomyia fasciata is still the preponderating mosc|uito, though 

 Culiciomyia nebvlosa is also numerous ; others, in order of frequency, 

 were Anopheles costalis, Ochlerotatus irritans, Culex decens, Uranotaenia 

 nnnulata, and Anopheles mauritianus. 



