546 
FRANK H. MILLER. 
dogs as representing those animals which I have had most occa¬ 
sion to study, not that I hold them to be those alone which suf¬ 
fer and die from this disease. 
I am aware of the fact that some authors in the field of veter¬ 
inary literature either dispute its existence or question its hav¬ 
ing been adequately demonstrated, while others, admitting its 
existence and after paying compliment to its infrequency, hastily 
dispose of the matter by adding that its true pathology is un¬ 
known. 
Now, from a certain standpoint, these observations are as 
excusable as they are incorrect. 
Writers in comparative as in human medicine all have used 
their own as well as the experience of their fellow laborers, but 
regarding this particular disease ^mong animals there has been 
extremely little evidence of any value brought forward. The 
sole reason why there is not this day to be found in all standard 
veterinary text-books treating of internal diseases the most scien¬ 
tific treatise upon diabetes mellitus is that veterinarians as a 
great class place absolutely no value upon urinary analysis as a 
diagnostic medium. And this is true not alone in respect to 
this disease, but many others which we are called upon to treat. 
Who, of all men who devote their lives to the study of the 
animal body and its phenomena, should so thoroughly grasp 
every available source of enlightenment as we who deal with 
fellow creatures wanting in power of speech intelligible to us. 
Gentlemen, the day has passed at the house of scientific 
veterinary medicine when the clinical report of a sick animal is 
complete or in the slightest degree satisfactory without its rela¬ 
tion to the proper urinary tests. 
No, indeed, diabetes mellitus of the lower animals, and es¬ 
pecially of our friend the dog, is neither such a rare disease nor 
one of which but little is known. It is true, the study of it has 
not up to the present day been able to satisfactorily clear up its 
entire horizon, but it has certainly shown some wonderful truths 
which must ultimately be fruitful in placing it in a clear light. 
It has been my fortune to stand at one of the greatest poly- 
