33 



Sergent (Edm.), Foley (H.) & Vialatte (C). Sur des formes micro- 

 biennes abondantes dans le corps de poux infect6s par le typhus 

 exanth6matique, et toujours absentes dans les poux t^moins, non 

 typhiques. [On micro-organisms found plentifully in the bodies 

 of lice infected with exanthematous typhus and always absent 

 in control lice free from typhus.] — C. R. Soc. Biol, Paris, Ixxvii, 

 no. 21, 19th June 1914, pp. 101-103. 



In the bodies of lice infected with exanthematous typhus, cocco- 

 bacilli have been observed which have a strong resemblance to the 

 bacteria found by investigators in the blood of patients and already 

 noticed by Ricketts and Wilder in the bodies of infected lice. These 

 coccobacilli only occur in lice which have infected healthy subjects 

 with exanthematous tyhus and have never been observed in the course 

 of thousands of dissections of non-infected lice. If not themselves 

 the virus of exanthematous typhus, they may be the outward sign bjE 

 the presence of the invisible infective agent. '' 



Ringenbach (J.) & Guyomarc'h (— .). La fllariose dans les regions de 

 la nouvelle fronti^re Congo-Cameroun. Observations sur la trans- 

 mission de Microfilaria diurna et de Microfilaria perstans. 

 [Filariasis in the areas along the new Congo-Cameroon frontier. 

 Observations on the transmission of Microfilaria diurna and 

 Microfilaria perstans.]—Bull. Soc. Path. Exot., Paris, vii, no. 7, 

 July 1914, pp. 619-626. 



The authors say that anyone making frequent microscopical 

 examination of the blood of the natives in French Equatorial Africa 

 cannot fail to be struck by the frequency with which filaria embryos 

 are found, and they deal with the distribution of Microfilaria nocturna, 

 M. diurna, M. perstans and a fourth species, Filaria volvulus, described 

 for the first time by Brumpt from the banks of the Welle, in which 

 district 5 per cent, of the fishermen and travellers were attacked. 

 According to Ouzilleau, every individual exhibiting symptoms of 

 elephantiasis is without exception infested by F. volvulus. Infection 

 by these four varieties of Filaria is dependent upon biting insects, 

 as has been demonstrated for F. bancroftii and Culex fatigans, and 

 Glossina has been accused of carrying Filaiia volvulus. In the Gaboon 

 and on the middle Congo, Chrysops centurionis, Aust., called " Oseun " 

 by the Pahouins and exceedingly common in the rainy season, 

 persistently attacks man. Dissections of the stomachs of C. centurionis 

 by the authors yielded M. diurna and M. perstans and they consider 

 that the probability of this fly being the carrier is very great, 

 though they were not in a position to prove it experimentally. 

 Leiper's discovery that Filaria loa is carried by a species of Chrysops 

 is quoted in support of their contention. A small midge of the genus 

 Ceratopogon, known as "furu," which is exceedingly active at sunrise 

 and sunset, never yielded Microfilaria either in its saUvary glands 

 or its stomach. 



(C136) Wt.P.86/57. 1500. 3.15. B.&F.Ltd. Gp.11/3. \ 



