5 



both types of bacillus together with faecal organisms. The prospect 

 of recovering the infecting organism from the fly diminishes very 

 markedly at and after 24 hours from the time of infection, and the 

 most suitable method of recovery after that time is from an examina- 

 tion of the faeces. After 24 hours, aberrant forms of dysentery 

 bacilli are recovered. It is suggested that special attention should be 

 directed to these abnormal findings. 



From an examination of flies trapped in hospitals it was found 

 that those living under natural conditions also showed a small 

 percentage carrying dysentery bacilli. 



Fillers (A.W.N). On the Occurrence of Tkrips sp. in Skin Scrapings 

 of Horses.— Fe^ Jl., London, lxx\% no 10, October 1919, 

 pp 124-125, 1 fig. 



A thrips, probably Limothrips {Thrips) cerealium, is recorded in 

 equine skin scrapings. This species is common in the summer on 

 growing grain, and is thus likely to be found in the sweat or exudations 

 of the diseased skin of horses in the proximity of ripening corn. 



Wright (E. Hasell). Report of the Prevalence of Malaria and 

 Anopheline Mosquitoes and Measures recommended for the 

 Prevention of Malaria in Mercam.—Indian Med. Gaz., Calcutta, 

 hv, no. 10, October 1919, pp 361-365, 1 map. 



Investigations have been made in the Mercara district with a view 

 to the reduction of malaria, the splenic index in that locahty 

 ranging from 23 -71 to 54 per cent. The mosquitos bred from 

 collectecl material include Anopheles rossi, A. jamesi, A. mamlipalpis, 

 A. barbirostris and A. maculatus. The chief carriers appear to be 

 A. macidatus and A. tnacidijxdpis. The general character of the 

 country is described. The remedies advocated include improved 

 drainage, the recovery of swamp land and the use of prophylactic 

 and educational preventive measures. 



Herms (W. B.). Occurrence of Malaria and Anopheline Mosquitoes 

 in Northern California.— C'ai. State Bd. Health, Mthly. Bull. 

 Sacramento, xv, no. 1, July 1919, pp. 1-9, 7 figs. [Received 

 11th November 1919.] 



This paper has been noticed elsewhere {B.A.E., B. \\\, 163]. 



Kehoe (D.). Anthrax in South Africa.— C7/iioii S. Africa Dept. Agric, 

 5th and 6th Repfs. Direc. Vet. Research, April 1918, Pretoria, 

 1919, pp. 211-253. [Received 13th November 1919.] 



In the course of this study of anthrax, it is remarked that many 

 cattle owners in South Africa express the behef that the disease is 

 largely spread among their herds by the agency of Hippoboscids or 

 horse-flies (Tabanids). In the outbreak of 1918, which occurred 

 during the relatively dry period of the year, deaths among cattle 

 and sheep were rare, although these animals grazed upon the same 

 farms where equines were affected. Horses, mules and donkeys 

 were the animals most frequently attacked, mortaUty among them 



