208 Diseases of the Urinary Systent. 
urine, in which cases, by removal of the direct cause, and 
absolute rest, the organ resumes its natural contractile 
powers. When it depends upon nervous diseases, injury 
to the spinal cord, apoplexy, &c., the inability to dis- 
charge the contents remains, when nerve stimulants, as 
strychnine, or probably the iodide of iron may be useful. 
Removal of the urine may also be required at stated inter- 
vals, which the canine practitioner will accomplish by 
means of a suitable catheter. Animals suffering from any 
urinary complaint should be removed to the surgeon’s 
premises, where special attention can be bestowed. 
Disease of the Prostate is common in the dog. It 
is generally a disease of senility, and as such proves in- 
curable. The age of the patient renders treatment 
undesirable and a study of the causes will confirm the 
decision. 
Caleulus, or Stone in the Urethra, as a rule, 
originates in the bladder, but is retained in its passage 
from that organ, and becomes the source of irritation 
and stoppage of urine. In some instances it is situate 
in that portion of the canal lying within the pelvis, when 
removal can only be effected by an operation, for which 
the canine surgeon alone is competent. 
Urethritis, or Inflammation of the Urethra, in its 
extended form, arises from participation in disease of the 
bladder, prostate gland, &c., and the presence of calculus. 
Balanitis consists of a similar state, but confined to the 
lining membrane of the prepuce or hood-shaped covering 
at the free extremity of the penis; and Posthitis, or 
Inflammation of the Mucous Membrane, investing the 
glans penis, are two local forms of urethritis dependent 
upon causes acting locally, as dirt, debility, want of exer- 
cise, overfeeding, &c., and is common to pet and watch- 
dogs, and others affected with mange. These forms 
are common to dogs which are constantly at large, 
roaming our streets, and often as worthless mongrels, are 
the progenitors of the mongrel race. The disgusting 
scenes which ensue are a disgrace to our local forms of 
government, and their continuance is mainly respon- 
sible for the perpetuation of rabies. In the urethral form 
