SYMPTOMS 93 
light on the part of the dog, especially in small breeds 
such as Pekingese, Pomeranians, etc., though usually we 
find it supplemented by a serous or purulent conjunc- 
tivitis. In such cases photophobia is almost constantly 
present, corresponding in degree to the severity of the 
inflammation. 
In very many cases this affection is not manifest until 
about a week has elapsed after the first noticeable signs 
of sickness, though in fewer instances it occurs much 
earlier or may not, in fact, occur at all. The ocular 
catarrhal discharge is generally characteristic of dis- 
temper, and may be found roughly in about 60 per cent. 
of cases in combination with other symptoms, but very 
rarely alone. In forty-eight hours this serous or muco- 
purulent effusion may, in graver cases, have developed 
into a thick yellow purulent exudate (blenorrhoea) which 
adheres obstinately to the eyelids and lashes, where it 
dries into crusts, effectually gumming the lids together 
and imprisoning the succeeding formations of pus in 
the orbit. 
Simultaneously a thick purulent discharge is exuding 
from the nostrils, around which it clings and dries, 
causing the nose to become cracked and ulcerated. In 
consequence of the considerable amount of mechanical 
obstruction often caused to breathing, the discharges are 
violently sneezed out. 
Ulcerated Cornea.—The condition advances from bad 
to worse, for not only does the dog injure its eyes by 
scratching and rubbing at them in its futile endeavours 
to remove the offending concretions, but, as might be 
expected, the accumulations of stale pus set up excoria- 
tions of the skin surrounding the eye, attended by loss of 
hair, and graver still, often cause ulceration of the cornea. 
When these excretions are cleaned away and the eye 
opened, the conjunctival mucous membrane is found 
