57 



deforesting may not be thrown away, the tsetse-belts should be 

 carefully examined beforehand as to their receptivity or other- 

 wise, or at least some information should be obtained as to the 

 exact value of their infective power. 



Legendre (J.). Destruction des culicides a I'aide du filet. 

 [Destruction of Culicidae by means of nets.] — Bull. Soc. Path. 

 E.cot., vi, no. 1, 1913, pp. 43-4T. 



The author is of opinion that the use of a hand-net for keeping- 

 down mosquitos is a method not to be despised. He advises the 

 use of one 50 cm. x 30 cm. in the opening, the net to be 70 to 

 80 cm, deep. He originally described his net in B\iU. Soc. Path. 

 Exot., 1910, p. 457, and now gives an account of results obtained 

 by its use in Hanoi, Tongking, where mosquitos abound. 



The experiments were made in the hospital in a room, the 

 window and door of which were screened, with a total capacity 

 of 47 cubic metres, containing a bed and its mosquito net and 

 two small tables. The interior was lime-washed, except the lower 

 part, which was painted black up to 18" above the floor. Experi- 

 ments were made by closing the room and letting loose in it a 

 large niimber of mosquitos. An attendant was set to work to 

 capture them with the net, and in from half to three-quarters of 

 an hour the whole of the mosquitos let loose in the room had been 

 captured. The results of four such experiments are reported. 



The writer says that the net should be used quietly, and he 

 thinks that the plan is worth considering as a means of removing 

 mosquitos from the room without annoyance to the patient. He 

 says that all that is necessary to be done by way of preparation 

 is carefully to close the doors, windows, and other openings, but 

 that it is not necessary to do more than this, and he recommends 

 the method strongly in those cases in which fumigation cannot be 

 practised. 



Reckoning mosquitos at the rate of 900 to the gramme, and 

 weighing the catch, his own servants captured in one season 

 60,000 to 80,000 insects by the use of the net. 



Berxard (P. Xoel) & Bauche (J.). Conditions de propagation de 

 la filariose sous-cutanee du chien. Sfef/omi/ia fasciata bote 

 intermediaire de Dirofilaria repens. [Conditions of propaga- 

 tion of subcutaneous filariasis in the dog. Stegoinyia 

 fasciata the intermediate host of Dirofilaria repens.] — Bull. 

 Soc. Path. Exot., vi, no. 1, 1913, pp. 89-99. 



In the district of Hue (Annam) subcutaneous filariasis appears 

 to the authors to be a common affection, while vascular filariasis 

 is rare. In nearly four hundred dogs whose blood was examined 

 they were unable to diagnose Dirofilaria immitis. The post- 

 mortem examination of twenty-five other dogs, showed that the 

 great majority were suffering from the subcutaneous form of the 

 disease. The authors also observed that the number of dogs so 

 attacked varied very materially in different quarters of the town ; 



