PREFACE vii 



along this line than he has gone heretofore. Care has 



been exercised not to sacrifice the popular phase upon 



which our knowledge of the subject is based but to bridge 



over onto a more technical consideration of it. 



It is hoped that the author's intention of keeping the 



work thoroughly practical, yet giving it a touch of a 



somewhat technical nature, will be appreciated by students 



and stockmen alike. 



CARL W. GAY. 



Philadelphia, 

 July 1, 1914 



Digitized by Microsoft® 



