Having long felt the need of a book upon Swine, which 

 would meet with the requirements of the college student 

 and the busy farmer, I have at length been induced by my 

 friends to attempt the work myself, and the result of this 

 attempt is seen in the volume which is now placed before 

 the public. In the preparation of this work, special atten- 

 tion has been given to present day problems, rather than to 

 historic facts and speculations, and every effort has been 

 made to condense the information into as small space as 

 possible. No apology is offered for the manner in which 

 the subject is treated, and the Public must be the sole 

 judge as to whether the book is deserving of their com- 

 mendation. 



I wish to gratefully acknowledge the sympathy, encour- 

 agement, and assistance which I have received from 

 friends in this and other countries. To mention each one 

 would be out of the question, but my gratitude for their 

 kindness is none the less sincere. 



GEORGE E. DAY. 

 Ontario Agricultural College, 



Guelph, Canada. 

 December, 1905. 



