DISEASES OF SWINE AND OTHER ANIMALS. 345 
stated otherwise in the following pages. The food of all experimental 
pigs was the same, and consisted of corn in the ear, and occasionally a 
little green clover and purslane at noon or in the evening. The water 
for drinking was drawn three times a day from a well. 
Account of pig No. 1.—On August 211 procured from Mr. Bassett, four miles north 
of Champaign, a diseased Chester White pig, four months old (pig No. 4), which I 
put with pig No. 1 in pen No.1. This diseased pig, which arrived at 10.30 o’clock 
a. m., exhibited plain and unmistakable symptoms of swine-plague; its temperature 
was 1063° F., and its skin, on lower surface of the body, between the legs, &c., was 
considerably reddened. The temperature of pig No. 1, which objected to being ex- 
amined and struggled hard, was 1044° F. 
August 22.—Pig No. 1 allright; has vigorous appetite. Pig No. 4 at 8 o’clock a. m. 
very sick; has a peculiar, short, abrupt cough; at 1 o’clock p. m., dead. 
Post-mortem examination.—Capillary redness in the skin on lower surface of body and 
between the legs; considerable enlargement of lymphatic glands; more than two- 
thirds of the lungs hepatized and gorged with blood-serum ; some straw-colored serum 
in thoracic cavity and pericardium ; and morbid growths in process of decay (ulcerons 
tumors) in cecum and colon. ° 
Received at 1 o’clock p. m. three more pigs, each about three months old (cross of 
Berkshire and scrub), of Mr. Schumacher, a butcher in Champaign, who had bought 
the same of a farmer ten miles southeast of Champaign. I designated the same as pigs 
Nos. 5, 6, and7. Pigs Nos. 5 and 6 appeared to be perfectly healthy, and were put 
together in pen No. 3. Pig No. 7 was apparently indisposed; it had been transported 
ten miles, crowded together with twenty others, most of them larger and older, and 
exposed for several hours to the burning rays of the sun, in an open farm-wagon, on 
avery hot day. It was panting for breath, and showed symptoms of congestion of 
the lungs. It was put in pen No. 1 with pig No.1, before dead pig No. 4 had been 
removed. 
August 23.—Pig No. 1 perfectly healthly. Pig No. 7 very sick; breathes ninety-two 
times per minute; shows plain symptoms of pleurites; has no appetite, but is atten- 
tive and moves quickly when disturbed. It died at 8 o’clock p. m. Post-mortem 
examination revealed pleurites and pericarditis; the whole surfaee of the lungs was 
loosely agglutinated to costal pleura, and the substance of the same was gorged with 
exudation. No other morbid changes whatever. Whether this was a case of swine-plague 
or not, I leave to my readers to decide for themselves. I am decidedly of the opinion 
it was not, because none of the other twenty pigs, except Nos. 5 and 6 (see account 
of them) have, up to date,, contracted the disease, as I have learned from a reliable 
source. It is true two other pigs of the same lot showed some indisposition on the 
24th, 25th, and 26th days of August, but were all right again the next day, and are 
healthy yet. 
August 24.—Pig No. 1 perfectly healthy ; vigorous appetite. 
August 25 to 27.—No change. 
August 28.—Weather very hot and sultry; in afternoon severe thunder-storm and 
rain, which effected a sudden cocling of the atmosphere. Pig No. 1 in perfect health. 
August 29.—Pig No. 1 coughed once; being exposed in an open pen to the changes 
of weather and temperature, it has possibly taken cold. 
August 30.—Pig No. 1 perfectly healthy; is very lively, and has vigorous appetite. 
August 31 to September 4.—The same. 
September 4.—The same. At 6.30 o’clock p. m., diseased experimental pig No. 2 (see 
account of the same further down) was put in pen No. 1 with pig No. 1. 
September 5.—Pig No. 1 perfectly healthy. Pig No. 2 eats nothing; shows plain 
symptoms of pneumonia, 
September 6.—Pig No. 1 perfectly healthy. Pig No. 2 died at 6 o'clock p.m. (For 
post-mortem examination, which was made immediately, see account of pig No. 2.) 
September 7.—Pig No. 1 perfectly healthy, and has remained so up to date. Has 
always first-rate appetite, has never refused a meal, and is to-day a strong, vigorous, 
and thriving pig. (Made use of the same for another experiment on November 13.) 
2. Account of pigs Nos. 2 and 3.—August 21.—Both pigs are perfectly healthy; lave 
good appetite, and are active and lively. 
August 22.—Both pigs perfectly healthy. Inoculated both in right ear at 1.50 o’clock 
p. m. with blood-serum from the lungs of pig’No. 4, which had died at 1 o’clock p. m. 
The operation was performed by means of a small inoculation-needle, made for the 
purpose of inoculating sheep with the virus of sheep-pox. Each pig received two 
slight punctures on the external surface of the ear; the serum inoculated was less than 
one-fourth of a drop per animal. The blood-serum used was of a faint reddish color, 
and almost limpid. Examined under the microscope if contained a few red blood-cor 
puscles, numerous bacillus-germs, and some developed bacilli suis. 
August 23.—Pigs Nos. 2 and 3 perfectly healthy. No visible reaction. 
August 24.—Both pigs perfectly healthy ; have very good appetite. 
