188 The Management and Diseases of the Dog. 
“In appearance and structure this dusus nature bears a 
close resemblance to the mole on the human skin. 
“The presence of the tumour does not apparently cause 
any inconvenience to the puppy beyond a slight increase 
in the flow of the lachrymal fluid. 
“ Are these hairy tumours hereditary? If so, it would 
be unadvisable to breed from animals possessing them. 
The eyes of both parents of the puppy- above alluded to 
are perfectly normal.” 
Since the above records, similar cases have come under 
the Author's notice. 
HYDROPHTHALMIA. 
The abnormal accumulation of fluid in the chambers ot 
the eye, which gives rise to what, in ophthalmic surgery, is. 
termed “ Hydrophthalmia,” is a disease to which attention 
was first drawn by the author in 1884, through the Vete- 
rinary Journal, under the heading of “Special Notes on 
Canine Diseases.” Hitherto the subject had passed un- 
noticed in the literature of canine patholgy, probably owing 
to its non-recognition. 
The disease is usually confined to one eye, unless conge- 
nital predisposition exists, when both eyes may be involved. 
Causes.—A cachectic state of the constitution is favour- 
able to hydrophthalmia, but it may more frequently be 
traced to injury, particularly violent concussion to the eye- 
ball from a blow. 
Symptoms.—A. hydrophthalmic eye is protruded from the 
socket, and looks as if it were about to burst ; the eye-ball 
is hard and tense to the touch, usually of a dull opaque 
colour over the cornea, and the pupil is stationary. 
In dogs, hydrophthalmia generally involves both the 
anterior and posterior chambers of the eye. The distension 
caused by the dropsy produces considerable discomfort to 
