10 PREFACE 



available. Another is the use of technical terms. More of the 

 latter have been introduced than in most books on agricultural 

 subjects, the authors of which claim that they have studiously 

 avoided scientific names and substituted the simplest terms. 

 This is not only objectionable with a subject like veterinary 

 science, which is founded on practically all of the natural sciences, 

 but is an assumption that both the student and educated farmer 

 are unable to understand the English language. Once the mean- 

 ing of these terms is learned, no great difficulty should be ex- 

 perienced in reading veterinary literature intelligently. 



In preparing this volume I have drawn largely on lecture notes 

 that have been accumulated during the past eight years while 

 acting as an instructor in veterinary and agricultural colleges and 

 lecturer at farmers' institutes. Among the authorities most liber- 

 ally consulted are "Anatomy of the Domestic Animals," Sisson; 

 "Veterinary Physiology," Smith; "Veterinary Physiology," Paton; 

 "Diseases of Animals," Mayo; and "The Army Horse." These 

 publications are recommended for reference purposes. 



Particular thanks are due to my associates. Professor A. S. 

 Alexander and Dr. Herbert Lothe, for helpful suggestions, as well 



as assistance in reading pKoof . 



F. B. H. 



Madison, Wisconsin, 

 August, 1915. 



