INTRODUCTION 7 



a position here that he can avoid being kicked by the 

 cow when the needle is thrnst in. 



The needle shonld be thrnst from above downwards, 

 and a slip needle should be used if possible. If a 

 needle with a screw thread is used it is frequently 

 broken if it is thrust in while attached to the syringe. 

 If it is not attached to the syringe, too much time is 

 lost in attaching the syringe after the needle is in situ. 



When the cow is recumbent the injection can be 

 given in the side of the neck, or in the region of the 

 flank. 



Abscess formations following on hypodermatic injec- 

 tions in cattle are almost never seen, even when no 

 antiseptic precautions are taken. 



Things that Make for Success in Cattle Practice 



In beginning the discussion of diseases of cattle it 

 might be in place to call the reader's attention to the 

 fact that it would be a difficult matter to cite author- 

 itative and, at the same time, practical writings on a 

 system of therapeutics for cattle. Bovine therapy is 

 a specialty of veterinary medicine which offers a con- 

 siderable field for the development of improved and 

 enlightened methods of treatment. The same is true 

 of the diagnosis of diseases of cattle. 



Another point worthy of consideration in cattle prac- 

 tice is the veterinarian's personality, or his demeanor 

 towards the patient. This can almost be summed up 

 in two words: ''Be gentle." We are speaking, of 

 course, of dairy cattle. No consideration is given to 

 range cattle in this treatise. 



The diseases with which we shall concern ourselves 

 in the following chapters include the pathologic con- 

 ditions and accidents in cattle with which the prac- 



