VETElUNAllY MEDICINE. 787 



sive snhlimate. and (iIIkm- :iiitii)arasitic substances is believed to s])road the in- 

 festation of mites to iiealtliy parts of the dog's sliin. Experiments were made 

 with a hirge number of drugs to overcome this difficulty, a number of dogs 

 being kept under observation for months after treiitment. The author thus feels 

 certain of the ethciency of his treatment. 



The hair is cut from affected parts of the skin, and a bath of from J to 

 ] per cent of potassium sulphid applied. Affected parts are then rubbed with 

 a mixture containing 1 part oleum carvi, 10 parts alcohol, and 150 parts castor 

 oil. Daily applications of this ointment are made until a cure is affected. The 

 bath in potassium sulphid is repeated once a week. 



Demodectic mange of the dog' and its treatment, Hebrant and Antoine 

 (Aim. M('(l. }'('t., .')(! (imn), yo. lO. pp. .jo0~.~}65). — The symptoms of the various 

 forms of this disease are described. Treatment may be medicinal, surgical, or a 

 mixture of both. In the list of drugs which have been applied mention is made 

 of sulphur and its compounds, sulphate of zinc, iodin, mercury, nitrate of silver, 

 nitric acid, phenol, creolin, soap, oils, turpentine, etc. Hypodermic injections of 

 iodin failed to glAe entirely satisfactory results. 



Treatment of follicular mange, J. Nicolas (Jour. Med. Vet. et Zootech., 

 58 (IdOl). ticpt., pp. .i.iH-o'il). — The usual treatments applied for mange are 

 not very effective against the follicular form of the disease. The author had 

 excellent results, however, from hypodermic injections of iodin or a 2 per cent 

 solution of phenol. Decided improvement was shown in 4 days and the hair 

 began to grow on affected parts within 8 days. 



The rearing and management of turkeys, with special reference to the 

 blackhead disease, C. Ciktice (Jihodr Island Std. Bui. l.i.i, pp. OV/). — A his- 

 torical statement is presented regarding the develoi)ment of knowledge con- 

 cerning blackhead or enterohepatitis of turkeys. The author describes the 

 parasites, the symptoms and the lesions produced by the disease, and gives 

 notes cm the duration of the disease, the susceptibility of young turkeys, trans- 

 mission, innnunity, and treatment. Experiments beginning with 1900 are 

 briefly summarized. 



The experimental work reported in the bulletin bears chiefly upon the problem 

 of the transmission of blackhead. It was assumed that the protozoan organism 

 of blackhead was ,not present in the egg, and that, therefore, if eggs were 

 hatched by common fowls or without contact with turkeys the disease would 

 not develop in the young poults. The attempt to raise turkeys by means of 

 common fowls was a complete failure in so far as avoiding blackhead was con- 

 cerned. Further experiments indicated clearly that the disease Could be 

 avoidetl if the last few days of incubation was carried on artificially and if the 

 young poults were ke])t on board floors away from turkeys and common fowls. 

 It api)ears that the disease may be avoided by removing the turkey eggs from 

 under common fowls or turkeys o or 4 days before hatching, wiping them with 

 a cloth moistened in i)0 per cent alcohol and finishing them in an incubator. 

 By this means infection with blackhead was reduced from 80 per cent to 20 per 

 cent. The author suggests that the lack of success commonly noted in attempt- 

 ing to raise turkeys in confinement may be due to the fact that they are kept 

 in contact with common fowls. 



Further experiments in connection with the blackhead disease in turkeys, 

 C. CuiniCK {Rhode IsUtiid Sta. liul. Li',, pp. iir,-U}r>).—ln l!)U.") arrangements 

 were made for cooperative exi)eriments between the Bureau of Animal Industry 

 of this Department and the Rhode Island Experiment Station in the further 

 study of blackhead in turkeys. The experiments reported in this bulletin w'ere 

 largely carried out during lUOU. In these experiments it was shown that the 

 34157— No. 8—08 7 



