EQUINE ENZOOTIC PLEURO-PNEUMONIA. 
429 
it is unnecessary to give a special description, since they do not 
vary from sporadic cases. The result of the percussion is omitted 
for the same reason. 
The number of respirations varied from 24 to 60. The pre¬ 
dominating tension gave way to a relaxity as soon as exudation 
took place, indicated by increased action of ribs and flanks. If 
hydrothorax was developing this phenomenon was very obvious 
from the seventh to the tenth day. The breathing then became 
emphysematous. The thoracic organs were intercepted in their 
functions by serous fibrinous exudation, manifested by the funnel- 
shaped expansion of nostrils, oedematous tumefaction of limbs, 
sternum, abdomen and extremities, and the shapeless alimentary 
evacuations, which in the beginning were usually dry, tough, 
glossy and sometimes coated. 
On examining the heart’s action, its beats were found rather 
feeble, and in the stage of convalesence often intermittent. The 
pulse also lacked energy and was most frequent from the second 
to the seventh day, generally recording 56 to 80. Those with 90 
and over had scarcely any chance of recovery. Concomitent 
symptoms, current in one or the other, were a paresis-like inca¬ 
pacity of controlling locomotion, unusual stupidity, dullness, poly¬ 
dipsia, profuse diuresis, enteralgia and frequent lying down, 
though apparently resting comfortably. Notwithstanding the 
unfavorable aspect some of these patients presented, all of them 
made a good recovery. 
Post Mortem Examination .—Time would not permit of hold¬ 
ing a post mortem examination on them all, but those that were 
examined revealed in general a combination of parenchimatous 
pneumonia and pleurisy, partial hepatisation, suppuration, anaemia, 
and profuse effusion of serum and plastic exudation, completely 
covering visceras and other surfaces, etc.. 
Of forty-six recorded bilateral cases, eighteen died wtili hydro¬ 
thorax. Twenty-four were operated upon, six of which recovered. 
I am unable to point out any specific causes ; those already 
known were only now and then suitable to the case. The much 
abused cold could not be held accountable in hardly any of these 
instances, for frequently horses were found sick after several 
