PREFACE TO THE SECOND EDITION. 



The flattering reception accorded the first edition nec- 

 essitated the early publication of a second edition. The 

 work has been re-read, corrected and brought up-to-date, 

 and includes several new illustrations. Heavy type has 

 been used to draw attention to essentials. "While packed 

 in a small compass, it can be amplified by any instructor 

 to meet the needs of his class. I am indebted to Capt. 

 M. H. Hayes, F. E. C. V. S., Eugby, Eng., for suggestions 

 arid corrections, and to F. Torrance, B. A., D. V. S. (Mc- 

 Gill) Winnipeg, Can., for his kindness in revising the 

 work. A. G. H. 



Winnipeg, Can. 



ACKNOWLEDGEMENTS. 



The thanks of the author are due to the following 

 parties for loans of half-tones and electrotypes: Prof. C. 

 S. Plumb, La Fayette, Ind.; G. E. Howard & Co., pub- 

 lishers of The Feather and Diseases of Poultry, Washing- 

 ton, D. C.; Hausmann & Dunn, Veterinary Instrument 

 Makers, Chicago; The Farmer's Advocate, London, and 

 Winnipeg, Canada; The Horseshoer's Journal, Detroit, 

 Mich. ; S. A. Hoxie, Yorkville, New York, and the Uni- 

 versity of Wisconsin. 



ERRATA. 



Page 245 In the illustration, the spavin is on the near 

 leg, not the off one. 



Chapter VIII, Part II, page 153, should be Chapter 

 XIII. 



