42 The Management and Diseases of the Dog. 
preceded it, and we may tap again with the same result 
There are, nevertheless, exceptional cases: in the horse I 
have seen recovery follow the operation, and also in the dog. 
CHRONIC PLEURISY 
May, as I have stated, be a termination of the former, or 
it may begin as a chronic affection, #2, it may assume a 
sub-acute form from the commencement. Pain on the 
affected side, cough, increased pulse, and respiration con- 
siderably accelerated by exertion, and more or less fever, are 
the symptoms generally present. Effusion, or lymph and 
adhesions are usually present; as the lymph becomes or- 
ganized, the fluid absorbed, and the adhesions firmer, the 
walls of the chest become flattened ; dulness on percussion, 
‘eebleness of the respiratory murmur, and an occasional 
rasping sound attend this condition. 
-Treatment.—This consists in endeavouring to promote 
absorption of the effused fluids, and in giving strength to the 
patient. The sulphate or iodide of iron, in from 5 to 15 
grains, in proportion to the size of the animal, with cod-liver 
oil, forms the best and, I have found, the most successful 
medicinal treatment. 
Mild continued counter-irritation to the sides of the chest 
is also advisable. The application of the tincture of iodine, 
after first shaving off the hair, is exceedingly useful, and the 
insertion of a seton in front of the chest for a month or six 
weeks is most valuable. Quietude, and avoidance of damp 
and cold are necessary. 
The diet should be nourishing, and every means adopted 
which is calculated to impart vigour. 
PNEUMONIA, 
Or inflammation of the substance of the lungs, is a complaint 
to which dogs are exceedingly liable. 
