192 



water. Treatment should be repeated at least every 10 days. For 

 catching flies near dwellings, bundles of straw or dried grass should 

 be hung up, after being dipped in the following mixture : — 1 part 

 honey, 1 part treacle, ^ part arsenite of soda, 10 parts water [see also 

 this Review, Ser. B, Vol. i, p. 68]. 



Mason (F. E.). Report of the Veterinary Pathologist. — Minist. Agric, 

 Egypt., Vet. Service, Ann. Rept. for 1915, Cairo, 1916, pp. 28-42. 

 [Received 21st October 1916.] 



Experiments on the subcutaneous injection of virulent, cattle-plague 

 blood to produce immunity were continued until July 1915. During 

 that month, 50 cattle were tested and no cases of plague followed the 

 test. It was therefore concluded that a strong immunity had been 

 conferred, lasting not less than three years. 



Spirochaetosis was transmitted to fowls, ducks, turkeys and geese 

 by Argas persicus. Other species of ticks collected were : — Margaropns 

 annulatus, on cattle suffering from Texas and Egyptian fever ; Rhipi- 

 cephalus evertsi, on cattle with Texas fever and on donkeys with malaria ; 

 R. oculatus, on healthy camels ; R. sanguineus, on dogs with malaria ; 

 Hyalomma aegyptium, on cattle with Texas and Egyptian fevers, on 

 horses with malaria, and on healthy camels ; Haemaphysalis leachi, 

 on dogs with malaria ; Margaropus {Boopliilus) australis, on cattle 

 with Texas fever and Egyptian fever. 



A form of piroplasmosis occurred among Egyptian sheep due to a 

 species of Theileria. 



Cooper (H.). Note on Spraying of Cattle with Special Dips for the 

 Eradication of Ticks. — Minist. Agric, Egypt; Vet. Service, Ann. 

 Rept. for 1915, Cairo, 1916, pp. 45-48. [Received 21st October 

 1916.] 



Tick-infested cattle were thoroughly sprayed with arsenical dip at 

 the strength of 1 part dip to 150 parts water, at intervals of from 

 6 to 10 days. In cases of light infestation, three or four sprayings were 

 considered sufficient ; in severe cases, this number was increased to five. 

 Subsequent examination showed that even in badly-infested animals 

 few living ticks were present after the third application. Mature ticks 

 died three or four days after spraying. The condition of the animals 

 was found to improve in every case. No cases of Texas fever occurred 

 among sprayed cattle. It is suggested that stables should be cleaned 

 and limewashed before sprayed animals return to them. Spraying 

 should not be carried out on wet days. Nile water was preferable to 

 well water for diluting the dip, as the latter caused a certain amount 

 of coagulation. 



*o^ 



Bacot (A.). The use of insecticides against lice. — Separate from 

 British Med. Jl., no. 2909, 30th Sept. 1916. 



This is a record of a series of experiments on the lice-killing properties 

 of various substances made under such conditions that the lice had the 

 opportunity of feeding whilst exposed to the influence of the substance 



