502 
OBSERVATIONS ON 
of balancing motion of the whole of the body. To these symp¬ 
toms are added such extreme sensibility of the sides of the 
chest, that the animal immediately throws himself down if those 
parts are pressed upon. The elbow^s in many subjects become 
separated from the sides of the chest; the pulse is smaller than 
natural, and not considerably increased, and the movements of 
the heart are not sensibly accelerated : the muzzle is dry and 
moist alternately ; the animal lies down as when in health, but 
rumination is suspended. The faeces are harder than they should 
be; the urine undergoes no change. The mouth is often hot, 
but the horn and ears retain their natural temperature. 
This first stage of the disease sometimes continues during a 
month or more. If the termination of the complaint promises 
to be the recovery, or, at least, the apparent recovery of the ani¬ 
mal, the symptoms gradually diminish ; the appetite returns, 
and the beast begins to gain flesh. The proprietor should then 
make haste to get rid of the animal; for it is very rare that the 
disease, however it may be palliated for a time, does not return 
again with more intensity than ever. 
In most cases the disease continues to pursue its course to¬ 
wards its fatal termination, every symptom gradually increasing 
in intensity. The respiration becomes more painful; the head is 
protruded ; the eyes have a peculiar clearness; every expiration 
is accompanied by a grunt, and a kind of puckering of the 
angles of the lips ; the cough becomes lower, more suppressed, 
yet more painful; the tongue protrudes from the mouth, and a 
frothy mucus is abundantly discharged : the breath, before de¬ 
void of smell, becomes offensive; a purulent fluid of a bloody 
hue escapes from the nostrils ; a profuse and fcetid diarrhoea 
usually succeeds to the constipation : and the animal, worn to a 
complete skeleton, and still more weakened by having eaten no¬ 
thing for many a day, lies down to rise no more. 
Opening of the carcass .—On post-mortem examination very 
slight traces of inflammation of the intestines are visible: the 
liver is discoloured ; and the substances contained in the many- 
plus are dry and hard. The principal disorders are those of the 
thoracic cavity : the lungs adhere to the sides and to the dia¬ 
phragm by numerous bands, evidently old and very firm. The 
substance of the lung often presents a reddish grey hepatization 
throughout its whole extent, and in which the cellular interlobu¬ 
lar tissue, hardened and turgid, forms numerous yellow bands. 
At other times there are numerous tubercles in every state of hard¬ 
ness, and some in that of suppuration. That portion of the lung 
that is not hepatized is red and gorged with blood. The bronchial 
ganglions have become greatly enlarged, and also contain tuber- 
