158 



althougli house-flies {Musca doniestica) are respoiisible for transxnission 

 they can only be infected during the larval period. Attempts to 

 cause the disease by placing larvae of H. mnscae removed from horse 

 manure on the skin of horses failed, as they are unable to pierce the 

 skin and quickly die when exposed to a dry atmosphere, though in a 

 moist medium they may remain alive for over 12 hours. 



The prophylactic measures advocated are the destruction of the 

 adult, H. muscae, by internal applications of 1 to 2 gr. of arsenic given 

 to the horse daily and the immediate removal of manure to heaps 

 where the fermentation and heat produced will kill all larvae including 

 those of flies. Ail wounds should be protected from flies, for which 

 the following formula is recommended, as it also contains curative 

 properties : plaster of Paris 100 parts, alum 20, naphthaline 10, and 

 quinine or any other bitter powder 10. This should be repeatedly 

 applied until there is not the slightest sign of exudation from the 

 wound. 



Cantacuzene (J.). Role du Pou dans le Typhus exanthematlque et 

 Temps d'Incubation de la Maladie.— ZJ«i^. Soc. Path. Exol., Paris, 

 xii, no. 7, 9th July 1919, pp. 364-367. 



Details of fifteen cases are recorded showing the importance of lice 

 as typhus transmitters. Attention is drawn to the fact that upon 

 removal of one of the cases to hospital the patient's bed, which was 

 infested with lice that had fed freely on him after infection, was 

 immediately occupied by a laboratory attendant wdio, though exposed 

 to the bites of the same insects, did not contract the disease. The 

 incubation period, as ascertained by these observations, varied from 

 7 to 23 days. 



Laveran (A.) & Franchini (G.). Infection des Souris blanches a 

 I'Aide des Cultures des Her]:etomonas ctenocephali. — BnJl. Soc. 

 Path. Exol., Paris, xii, no. 7, 9th July 1919, pp. 379-383, 3 figs. 



Experiments have been made to estimate the result of inoculating 

 mice with pure cultures of Herpeiomonas ctenocephali obtained from 

 the dog-flea [Ctenocephahs canis]. The technique employed and 

 the results of the various blood tests made are described. From 

 blood taken from the heart of a mouse pure cultures were obtained 

 of flagellates that were identical with those from the digestive tract of 

 the parasitised dog-flea. 



Croveei ( — .) & SAI.vESTFO^'J (— .). Rogra dt mcdettica rel Cavallo. 

 [Demodectic Marge in the Hor^e.] — EvlJ. Soc. Path. Eccot., Paris, 

 xii, no. 7, 9th July 1919, ]-p. S88-3C0, 1 fig. 



Cases of demodectic marge in the horse are rare and apparently 

 none have been recorded from Africa. In this instance a mare in 

 Italian Somaliland was found to be iifested with Eemcdex follicuhrvm 

 var. equi somaliensis, var. n. Ihis variety diflers in size from that of 

 man and dog, and from that of the pig in the form of the proboscis. 



