^' 1C6 



recommended as a protective measure, but it is the author's opinion 

 that, apart from keeping stables and watermg places in a sanitary 

 condition, there is little value in this procedure. 



McFadyean (Sir J.). Annual Report for 1918 of the Principal of the 

 Royal Veterinary College. Parasitic Mange in Horses. — Jl. R. 



Agric. Soc. England, Lovdoyi, Ixxix, 1918, pp. 236-240, 3 figs. 

 [Received 29th August 1919.] 



The sarcoptic, symbiotic and psoroptic forms of mange occurring 

 in horses caused by Sar copies scabiei var. equi, Chorioftes symbiotes 

 var. equi and Psowptes cormmmis var. equi are briefly described 

 including general symptoms and treatment. The last-named is the 

 most common in England and can generally be cured by the various 

 dips used against sheep scab ; arsenical dips should be avoided owing 

 to the risk of poisoning by licking. 



The sulphur and lime dip has proved successful when applied by 

 means of a spray pump. At least two application with an interval 

 of 8 days are necessary. 



The provisions made by the parasitic mange order of 1911 and 

 1918 are reviewed. 



Clark (H. C). Piroplasmosis of Cattle in Panama : Value of the 

 Brain Film in Diagnosis. — Jl. Infectious Diseases, Chicago, III., 

 xxii, no. 2, February 1918, pp. 159-168. 



Piroplasmosis of cattle is practically speaking universal in Panama 

 ■where it occurs in the horse, dog, cattle and deer. Investigations of 

 native cattle showed that they are infested in almost every instance 

 with Piroplasma {Babesia) bigeminum, Filaria, Sarcosporidia and a 

 large trypanosome, probably of a harmless type. In two cattle a 

 spirochaete, probably Sjiirochaeta theileri, was found. Insect vectors 

 are not mentioned but the tropical climate favours tick development. 



Descazeaux (J.). Traitement de la Gale par les Solutions sulfo- 

 er6syl6es. — Rec. Med. Vet, Alfort, xciv, no. 12, 30th June 1918, 

 pp. 273-279, 2 plans. 



The first tank for dipping horses in sulphur- cresyl solutions was 

 erected at Faverney in January 1915 to the author's specification, 

 and the method has given good results against mange. Constructional 

 details are given of the tank, complementary to which are a rubbing 

 shed accomodating from 12 to 20 horses and a douche shed provided 

 with a warm water supply. The best insecticide formula has been 

 found to be : Cresyl 20, arsenious acid 1, potassium poly sulphide 10 

 and sodium carbonate 10, water 1,000, all parts by weight. Very few 

 cases fail to yield to 6 baths ; the majorit}' are cured after 3 or 4. 

 In winter it is advisable to clip the horses before dipping and again 

 3 weeks later. Horses in service at the front were partially cUpped and 

 washed all over at a 3-4 day interval with the foUomng solution : 

 Cresyl 25 oz., arsenious acid 1 oz., potassium polysulphide 20 oz., 

 sodium carbonate 20 oz., water 50 pints. If the animals are sprayed 



