PKEFACE TO THE SECOND EDITION. 



The success of the First Edition of this work has imposed upon 

 nie, thus early, the agreeable yet onerous duty of preparing a 

 Second Edition. 



This success has been largely contributed to by the demands 

 for the work from America, where, it is gratifying to learn. 

 Veterinary Science is being extensively cultivated. 



In embodying in this edition the latest information on the 

 •various subjects discussed, it has been my main object to con- 

 tinue to deserve the approval of my readers. 



The chapters on Inflammation have been carefully revised, 

 and the latest opinions and theories copiously embodied. 



The differences of opinion regarding the diagnosis of Foot 

 Eot, and Foot-and-Mouth Disease in Sheep — as exemplified in 

 the evidence of Veterinary Surgeons in cases which have been 

 tried in Courts of Law since the issue of the First Edition — 

 have induced me to treat this subject at considerable length. I 

 trust that the characteristic differences of these diseases have 

 been so clearly brought forward, that there will no longer be any 

 room for those differences of opinion which at present obtain. 



The chapters on Hernite have been remodelled, and I hope 

 simplified. Those on Skin Diseases and their treatment con- 

 siderably extended. 



In addition to these alterations in the text, the Plates illus- 

 trative of the subjects enlarged upon, have been increased in 

 number. 



In preparing this edition, I have received valuable assistance 

 from ]\Ir. Broad, of Bath, and Mr. Johnston, my Clinical 

 Assistant, to both of whom I now tender my thanks. 



W. W. 



New Vkterixary College, Edinbukgh, 

 1st December 1875. 



