x PREFACE 
to the country. Although the dog may be considered of 
minor importance in our economic life, yet he is very 
dear to us, and there is probably none but wishes his 
welfare and immunity to suffering. 
If in any measure I shall have contributed to this end 
by placing within the confines of one volume such know- 
ledge as exists to date in reach of the dog-loving popula- 
tion, I shall feel amply rewarded for my efforts. In any 
case I trust I have discredited some of the popular 
fallacies relating to distemper in dogs, and that the 
reader, no less than his canine friend, will profit by 
what is written. 
My grateful thanks are due to Professor Hobday, Dr. 
Ferry, and Dr. Copeman for the generous way in which 
they placed at my disposal drawings, literature, and the 
fruits of their ripe experience, and particularly, in the 
case of the first-named gentleman, for kindly undertaking 
the onerous task of reading through the proofs. I 
am also indebted to Messrs. Parke, Davis and Co., who 
have kindly given me access to much literature dealing 
with the malady; to Messrs. Muller and Glass for the 
permission accorded me for the use of several of the 
illustrations herein depicted, and to Messrs. Arnold and 
Sons for those of instruments. The frontispiece has 
been redrawn from a copy supplied by kind permission 
of The Bazaar, Exchange and Mart. 
H,. K, 
67, WIGMORE STREET, 
Lonpon, W. 1. 
April, 1922. 
