EPIZOOTIC PLEURO-PNEUMONIA IN HOGS. 597 
near them. The pulse, which could only be examined in those 
animals that were the most quiet, was full and hard. All these 
symptoms were manifested in the course of twelve hours. If the 
disease continued, the symptoms became much more alarming; 
rattling in the throat came on, the limbs were strangely stretched 
out, the animals began to stagger, they supported themselves 
against the wall, and only fell to die in a few moments after¬ 
wards. This was usually about the third day. In some of them 
death was preceded by violent convulsions of the extremities 
and of the face. 
The causes appeared to me to be evident; I found them in the 
burning heat of the sun, in the dry channels of the brook, and 
where they no longer found wherewith to satisfy their extreme 
thirst, occasioned by the dryness of the plants on which they 
fed. In the evening, on their return from the fields, having been 
exposed during the whole of the day to a degree of heat, by 
which they were exhausted, they received their usual feed, and 
were immediately shut into their sties, having little or no ventila¬ 
tion ; and where they remained until the following morning, 
tormented both by thirst and heat. 
In more than twenty animals which were opened immediately 
after death, I found the following morbid appearances: the tho¬ 
racic cavity was filled with a very clear bloody fluid; the lungs 
were very much inflamed, the pleurae thickened, extremely in¬ 
flamed, and injected ; the diaphragm covered with black patches 
about the size of a franc piece ; the mucous coat of the intestines 
slightly inflamed; the windpipe and the bronchial tubes full of a 
reddish froth ; the brain covered with a reddish serosity. It was 
only in a very few animals that I found no hydrothorax, and par¬ 
ticularly in those in whom convulsions had appeared before their 
death. 
I advised all those who consulted me, to put into the sties 
troughs large enough to hold sufficient water for the hogs, and 
that water to be acidulated and nitrated, and mixed with a 
little rye-meal, and to renew it frequently; also not to send the 
animals out to the field while the weather continued so hot. I 
prescribed general baths, which they should take about half an 
hour before the evening feeding-time in the trenches destined for 
watering the meadows, and the water of which had been warmed 
by the heat of the sun. I bled them all from the tail; and 
ordered the sties to be kept very clean, and the doors to be re¬ 
placed by hurdles during the night, in order to facilitate a free 
admission of fresh air. The food, which was usually composed 
of a mixture of potatoes, cabbage, and bran, was not given in so 
large quantities. I took away half the potatoes, and added let- 
. vol. v. 4 L 
