402 Report of the commissioner of agriculture. 



oue-third of the whole tissue of the lungs hepatized, the non-hepatized 

 liortions of the lungs partly lilled with fluid exudation and containing 

 innumerable small, reddish-brown specks, caused by extravasations of 

 blood (these lungs constituted, in their mottled appearance, and with 

 their numerous embolic hearths and extravasations of blood, a very 

 characteristic specimen, and I regret that I was not prepared to have 

 them photograi)hed) ; some serum in chest and pericardium ; all blood- 

 vessels of the auricles of the heart turgid with dark-colored blood. In 

 the abdominal cavity, one small, incipient ulcerous tumor and numerous 

 worms {Triclioceplialus crcnatus) ; in caecum, numerous ulcerous tumors in 

 different stages of development; spleen very largo and dark colored, 

 and other organs destitute of any morbid features. 



The other animal, a four months old boar pig, was examined immedi- 

 ately after death. The morbid changes were as follows : Lymphatic 

 glands enlarged ; blocdof normal color ; considerable exudation (serum 

 and coagualtions, the latter principally on the anterior surface of the 

 diaphragm) in. the chest ; over one ounce of serum in the pericardium; 

 distinctly marked and fully developed hepatization only in the lower 

 portions of both lobes of the lungs, but incipient hepatization or fluid 

 exudation, and numerous small red spots of extravasated blood, each 

 about a large as a pin's head, everywhere through the whole pulmonal 

 tissue, but especially toward the lower border of the lobes ; the capillary 

 vessels of the heart, and i)articalarly those of the auricles, turgid with 

 blood. In the abdominal cavity : The whole peritoneum, but especially 

 the serous coat of the intestines, congested, that is, aU the smaller capil- 

 lary vessels turgid with dark-colored blood ; the intestines in many 

 places agglutinated (adhering) to the waUs of the abdominal cavity; the 

 liver very dark and congested ; the gall thick or almost semi-soUd ; the 

 mucous membrane of the stomach wine-colored, and almost black, and 

 very much swollen toward the pylorus ; the mucous membrane of the 

 duodenum black and gangrenous, and that of the jejunum purple and 

 wine-colored ; a large number of ulcerous tumors of various size in colon, 

 and a few in caecum ; no entozoa or worms. 



Neither of the two pigs presented any external morbid changes, ex- 

 cept No. 2, which was slightly bleeding fi'om the nose when it was di'agged 

 from the place where it had died to the place where the post mortem ex- 

 amination was Diade. 



The following arrangements were made : The whole herd, some sixty 

 odd head, was divided into two lots, No. 1 to contain the apparently 

 healthy animals, or those not evidently sick, and No. 2 to be composed 

 of seven very sick animals. On my arrival I found, as already stated, 

 nine very sick pigs, but one died during my presence, and another was 

 nearly half a mile from the barn-yard in the remotest of the two pastures, 

 and was there left to its fate, as it was expected to die within a short 

 time. The seven very sick pigs or shoats were shut up in a pen espe- 

 cially prepared for them, and lot No. 1, composed of those animals ap- 

 parently healthy, was allowed to go to pasture (the one nearest the barn- 

 yard) during the day, but was shut up in the barn-yard during the night, 

 from sundown till ten o'clock in the morning, or till the dew had disap- 

 peared from the grass. The barn-yard was on high and dry ground, 

 perfectly bare, and destitute of straw stacks, half-rotten manure, or pools 

 of stagnant water. The pasture, too, was destitute of old straw, &c., 

 and contained no water. The animals, tlierefore, received no water but 

 what was drawn from a well in the barn-yard. Before my arrival the 

 herd had access to running water in the remotest of the two pastures, 

 and also to a stack-yard which contained old straw, All this was stopped. 



