202 



is also pointed out that Langeron's description of the larvae from 

 Tozeur coincides with the author's description of larvae from Beni- 

 Oimif-de-Figuig and clearly differentiates this species from 

 A. turkhtidi. 



BouFPARD (G.). Sur un Cas de Fi^vre jaune h Porto-Novo. [A Case 

 of Yellow Fever at Porto-Novo.] — Bull. Soc. Path. ExoL, Paris, 

 xi, no. 7, 10th July 1918, pp. 553-557. 



The history is recorded of a single case of yellow fever occurring 

 in Dahomey in 1917, the patient being a European and the malady 

 proving fatal. Stringent measures were at once taken to prevent 

 the spread of the disease. The necessity is urged for a permanent 

 campaign against yellow fever, which has undoubtedly been endemic 

 in the Territories of the Bight of Benin for the last 15 years. The 

 only way to prevent serious epidemics is an increasing warfare against 

 the larvae of the insect vector. St&jomyia [fasciata]. In the principal 

 centres of the Colony sanitary brigades are working constantly and 

 have succeeded in diminishing the numbers of this mosquito until 

 serious epidemics are no longer to be feared. Isolated cases camiot 

 be avoided, but their spread can be prevented. In western Africa, 

 where the temperature varies between 78° and 86° F., the aquatic 

 hfe of the mosquito occupies about 10 days. It is wise therefore 

 for the sanitary inspection of any particular settlement to be com- 

 pleted within a week. If the surveillance were relaxed, a few weeks 

 would suffice to change completely the sanitary situation of a town 

 that would be at the mercy of a single unnoticed or tardily recognised 

 case of yellow fever. 



Van Saceghem (R.). Cause etiologique et Traitement de la Dermite 

 granuleuse. [Etiological Clause and Treatment of Granular 

 Dermatitis.] — Bull. Soc. Path. Exot., Paris, xi, no. 7, July 1918, 

 pp. 575-578. 



Recent experiments have confirmed the statement that the larvae 

 of Hahronema muscae, which in summer cause sores in horses, are 

 carried by the house-fly, Musca domestics [see this Review, Ser. B, 

 vi, p. 13]. The infection of M. domestica by the larvae of H. muscae 

 can only take place during the larval stage of the house-fly. Larvae 

 of H. muscae isolated from flies can live more than 12 hours when kept 

 in a liquid medium. When placed on the hair or skin of the horse 

 they die rapidly and seem quite incapable of piercmg the skin ; on 

 any place where the skin is broken, however, or on the mucous mem- 

 branes they at once become active and cause an irritation which 

 results in the animal rubbing and increasing the wound and thus 

 giving access to a greater number of parasites. 



Prophylactic treatment consists in the control of //. muscae in the 

 stomach of the horse, which is effected by doses of arsenic, given at 

 the rate of 1 to 2 g. [sic] a day. The destruction of the larval stage of 

 H. muscae is secured by frequent renewal of the bedding of horses 

 and by burying the fresh dung daily in the fermenting manure- heap, 

 in the manner advocated by Roubaud [see this Review, Ser. B, iii, 

 p. 197], In the heat generated by the manure-heap the larvae of 



