SECTION V. 
DISEASES OF DOGS. 
INTRODUCTION. 
The dog seems to have been destined by the Creator to be 
the friend and assistant of man. Throughout the dangers 
and difficulties which beset the human being, particularly in 
an inartificial condition of society, the dog has ever proved 
himself the vigorous and faithful defender of his life and 
property, as well as a powerful and essential auxiliary in 
subduing other animals to his purpose, and of securing them 
as his food. Without the assistance of the dog, man would 
not even yet have obtained a beneficial dominion over the 
various races of wild animals of the earth, or been able to 
watch with sufficient care those creatures destined for his 
support. 
Of all animals known to mankind, the dog is the most 
diversified in form, size, proportions, properties, and intel¬ 
lect, agreeing only in one striking and admirable peculiarity 
—his constant attachment and fidelity to his master. Our 
domestic dog, with all the varied and striking varieties of 
form, is, however, but one species; changed and modified by 
