NOTE TO SECOND EDITION 



Knowing that many active and enthusiastic observers are work- 

 ing constantly in the line of diseases of direct contagion this edi- 

 tion has been delayed in the hope that some new and important 

 discovery of original research would be made, and to a certain 

 extent we have been rewarded by the work of Babes and of Negri in 

 respect to the quick diagnosis of Eabies. It has been thought possi- 

 ble that some one might be able to make a culture of Distemper 

 in dogs that would by inoculation of the young animal render 

 it either immune or at least slightly susceptible to this disease. 

 This, however, has not yet been accomplished. 



While the plan of the work, the admirable arrangement of 

 which is due to Dr. Muller, has not been changed a great number 

 of alterations have been made. The articles on Distemper, Eabies, 

 and Tuberculosis have been remodeled, and the therapeutics 

 throughout the work have been brought up to the standard of the 

 present day, the tendency of which appears to be, and rightly, to 

 use as little medicine as possible and in small and convenient doses ; 

 and to pay particular attention to hygiene, good nursing, and sani- 

 tation in kennels. 



I am indebted to Dr. John Eeichel for assistance in the pathology 

 of Babies, and to Walter McDougall for drawings. Plates in color 

 after my own photographs have been added. 



ALEXANDEE GLASS. 



(iv) 



