DIABETES MELLITUS IN DOGS. 
549 
having - suffered an attack of what appeared to have been identi¬ 
cal with the cerebral excitement of case No. i, crying - and rushing 
about the rooms. Along with the paresis was remarked facial 
twitching (epileptiform spasms) and semi-stupor. This condi¬ 
tion continued for a few hours and was again followed by crying. 
At this point prussic acid was administered. No autopsy made. 
Case No ‘ 3 -—This case, a 7 y 2 year old Yorkshire terrier, 
male, owned by Lieut. Scharff, Spandau, was admitted to the 
ward for surgical diseases, February 18, 1896, under the request 
that the cataract operation be performed. The patient had been 
treated for polyuria in the Polyclinic two months previously, 
and since that time had developed double side lenticular cataract, 
and vision had failed, causing the owner to wish that an opera¬ 
tion might be performed, hoping it might at least restore partial 
vision. He is in good flesh, food and water consumption has 
since his admission diminished. The visible mucous membranes 
are rose-red in color, and a slight serous discharge is to be seen 
at the eyes. The pulse’s frequency is 120 in the minute, fairly 
strong and rhythmic. The cardiac impulse can be felt; abnor¬ 
mal tones cannot be detected. Auscultation of the lungs reveals 
normal vesicular respiratory sound. Temperature 39.1 degrees 
Cent. There is opacity of both lenses of the eyes and vision 
much disturbed. Urine of whitish opalescent character and of 
I ,°44 specific gravity 5 albumen present in goodly quantities. 
No epithelium, nor other solid bodies. Grape sugar is present in 
abundance; another change to be noted was the somewhat in¬ 
creased quantity of chlorides and phosphates. Diagnosis : dia¬ 
betes mellitus. Prognosis unfavorable. The operation was by 
reason of the elevated temperature and catarrhal symptoms 
postponed for a few days, and daily observation was made as to 
the sugar, when its quantity fluctuated upon a purely non-fari- 
naceous diet from 7 to 8.2 per cent. Without material visible 
aggravation of the symptoms, the patient was, upon the 24th 
day, or five days after his admission, found dead in his cage. 
The official post-mortem examination was made Feb. 24, and 
the following report made : 
