VETEBINAR1 MEDICINE. 



cheap, easily prepared, and readily applied. Directions are given for the prepara- 

 tion of tin- more importanl of these remedies. 



Sarcoptic mange of hogs is described with notes on the symptoms and methods of 

 contagion. In severe cases it ultimately causes the death of young pigs. Dipping 

 combined with scrubbing is the only practical method of eradicating this Mi-. 

 \ second dipping should follow 6 days after the first treatment. Notes are also 

 given <>ii infestation with Demodex phylloides, and detailed directions are presented 

 for the preparation of suitable vats and other apparatus to be used in dipping hogs. 

 A bibliography of the subjecl is appended to the bulletin. 



An infectious disease of horses with alterations in the bones, Charon 

 and Thiroux (Rec. Mid. 17/., 81 (1904), No. ?$, pp. 737-759, Jigs. 2). — In Ma<l. 

 car a certain percentage of horses and mules are affected with a specific dis< 

 accompanied with changes in the bone tissue. The symptoms include general 

 debility, uncertain gait, redness of the conjunctiva, occasional hemoglobinuria, etc. 

 Detailed notes are given on the bone affections which accompany the disease. In 

 blood preparations the author found specimens of Piroplasma equi. Detailed notes 

 are given <»n a number of cases of this disease. 



Immunization against horse sickness by the method recommended by 

 Professor Koch, ('. E. Gray (Jour. Compar. Path, and Ther., 11 (1904), No. i 

 j,j,. .///-.;.//). — A number of experiments in the treatment of this disease were begun 

 by Koch during his sojourn in Bulawayo. These experiments were continued by 

 the author and his associates. 



It has been found that unless the process of repeated inoculation is extended over 

 a very long period and unless the doses of virulenl blood are increased moregrad- 



ually than recoi ended by Koch a point is reached at which the natural resistance 



of the animal is overcome and an attack of horse sickness occurs. 



Apparently no real or lasting immunity is established even after the animal has 

 Withstood inoculation with a dose of 5 CC. of virus. Among the 20 horses, the treat- 

 ment of which was begun by Koch and finished by the veterinary service of Rho- 

 desia, 1- subsequently reacted and died of horse sickness. 



Fowl plague, <i. Marcone | Rev. Gin. Mid. 17/., 3 (1904), Nos. 32, pp. 409-423; 

 S3, pp. 465-481). — Attention is called to the fact that this disease affects not only 

 the ordinary domestic fowls, but pheasants and a number of wild birds. 



Notes are given on outbreaks of the disease. The various forms under which it 

 occurs are described and a hrief account is presented of its pathological anatomy. 

 Various micro-organisms have been suspected of causing this disease, but thus far 

 no investigator has been able to demonstrate to a certainty the pathogenic organism. 

 The virus maintains its virulence under ordinary conditions for from L'l to 90 days, 

 depending On the temperature. Chickens are most susceptible, but ducks, geese, 



and other domestic birds may also be affected. Particular attention is given to a 

 study of this disease among pheasants. 



Fowl plague has been particularly destructive to pheasants in the neighborhood of 



Naples. The spread of the disease anions pheasants in parks is believed not to be 

 due t i wild birds, but to stray domestic fowls. 



Vaccination against fowl cholera by means of toxins, C. Bisanti ( Rev. Gin. 

 Mid. 17/., 4 \ 1904 h No. }■'>, pp. f57-460). — According to the author's experiment- it 

 is possible to produce immunity against fowl cholera in susceptible animals by means 

 of cultures in vivo in collodion sacs. The presence of cultures in the peritoneum, as 

 interchanges between them and the Living organism are very active, confer- more 

 lasting immunity than can be obtained by hypodermic vaccination. 



Serum inoculation for fowl cholera, T. Kitt (Monatsh. Prakt. Herfieilk., 16 

 (1904). No. l, ]>]). 1-19). — It was found possible by repeated subcutaneous inocula- 

 tions with cultures of Bacillus avisepHcus in horses to obtain a serum which, in doses 



