ACKNOWLEDGEMENTS. 



The thanks of the author are due to the following parties 

 for loans of halftones and electrotypes: Prof. G. S. 

 Plumb, Lafayette, Ind. ; G. E. Howard & Co., pub- 

 lishers of The Feather and Diseases of Poultry, Wash- 

 ington, D. C. : Hausraann & Dunn, veterinary instrument 

 makers, Chicago; The Parmer's Advocate, London, 

 and Winnipeg, Canada; The Horseshoer's Journal, 

 Detroit, Mich. ; S. A. Hoxie, Yorkville, Xew York, and 

 the University of Wisconsin. 



ERRATA. 



'•Five" should be "six' 1 , third line from bottom of 

 page 18. 



"Fourth" should be "further", sixth line on page 7. 



Omit "a", bottom line, page 200. 



• ■ Curly ' ' should be ' ' cnrby ' ' under cut, page 239. 



