PREFACE. 



At the same time I wish to express 

 my thanks to Professor P. J. Cadiot, to 

 Monsieur Trasbot, Director of the Veterinary 

 School of Alfort, to Professor Nocard, and 

 the other professors of that institution, as 

 well as to many of the dleves, who have 

 rendered me very valuable aid whilst I was 

 among them. 



I also desire to thank Messrs. Asselin 



and Houzeau, publishers, Paris, for the 



assistance they have afforded me in respect 



of the plates, etc., for the illustration of 



this edition. 



THOS. J. WATT DOLLAR. 



