SFe*q 
Preface\vSf 
This small volume is the first of a series of books on par¬ 
asitology of domestic animals by Maurice C. Hall to be pub¬ 
lished by VETERINARY MEDICINE. Other volumes cov¬ 
ering the whole subject thoroughly and comprehensively will 
follow in regular order. The entire set, like the present one, 
will be profusely illustrated and when complete will cover 
approximately 3,000 pages. 
This stupendous enterprise is undertaken with no other 
object than that of supplying a crying, current need to the 
veterinary profession. In short, we have thought it little less 
than a crime to leave Dr. Hall’s investigations and exceedingly 
practical information unpublished any longer, because the toll 
parasites are taking from the livestock interests, already enor¬ 
mous, is destined to become greater and greater as the popu¬ 
lation and the mean value of animals increase. 
Impelled and inspired by the outstanding fact that the 
author is a capable writer, a world authority, and a highly 
practical therapist on the subject of parasitology, this initial 
contribution is submitted to the scrutiny of the critic. 
THE PUBLISHERS OF 
VETERINARY MEDICINE 
Copyright, 1923, by 
L. A. MERILLAT 
\G 1923 
C1A766285 
