DISEASES OF SWINE AND OTHER ANIMALS. 



91 



gcsta. The coats of tliis bowel were more or less congested, witli softeuiug of the 

 liicmbrauo at dilfercut points. 



A large vilcer is formiug on the edge of the ilio-Ciecal valve, in which the ontliue of 

 the follicles can still be seen of a yellowish color. 



Large intestines : Circum and colon congested throughout, but much more at some 

 points than at others. In the upper part of the colon arc extensive deposits of false 

 membrane of a dirty yellowish-white color, in places in spots of small size, and in 

 others in extended pkt'ches of several inches in length. The caecum has smaller spots 

 of the same kind. The rectum is very much thickened and of a deep red thi'oughont, 

 the thickening existing mainly in the mucous membrane. It presents, further, nine 

 small ulcers, with the characteristic dirty sloughs in the centers. 



Fanmies : The crecum contains one whtp-worm. 



Liver: In the main firm, but contains bluish jiatches. 



Pancreas: Apparently unchanged. 



Spleen : Black, full of blood, but not apparently enlarged. 



Mesenteric and sithhimhar Ji/mphalic (/lands: Are almost imiversally of a dark red, 

 almost black color. 



The left lidnc]/ : Has a cyst one-half inch in diameter in the anterior jiartpf its pelvis. 

 In common with the right kidney, it also presents numerous black petechia on the 

 medullary portions and papillae. 



Chest and rc'^piratorn organs: Larynx shows considerable congestion, especially on 

 the epiglottis and on the arytenoid cartilages. 



Pleurw : Contained an abundant blood-colored liquid exudation, especially in the 

 right sac, where the lung had contracted extensive adhesions by newly-formed false 

 membranes. The liquid effusion contained numerous white and red blood lobules and 

 activcl\--moviug bacteria, which assumed the most varied forms in rapid succession. 

 A loose coagulum forms in tho exposed fluid. 



Bronehia : Filled with froth having a perceptibly puik tint. 



Left lung : Anterior lobes congested and consolidated by recent exudation. Posterior 

 layer lobe sound. » 



.Plight lohc : Consolidated throughout ; sinks in water ; biit has not yet become lirm, 

 gi-anular, nor friable. The color of this lung varies from a light brick-red to a deep 

 red, approaching black, tho darker shades mostly occupying the spaces of connective 

 tissue between the lobules, these spaces being often stretched by the exudation to the 

 breadth of a line or more. On maiiing a section of the lung a considerable pulmonary 

 vein was found to contain a friable granular grayish clot which had evidently existed 

 for some time before death. 



Perieardinm: Contains a large amount of blood-colored effusion, in which blood- 

 globules and moving bacteria abound. Tho Y>arietal and visceral layers were con- 

 nected by loose false membranes. Loose daric clots and some fluid blood existed in 

 the right side of the heart, and spots of extravasation on the walls of the left ventricle. 



Lyw})hatic glands : In the region of tho throat are of a very deci) red. The same 

 remark apx>hes to the bronchial and subdorsal glands. 



Table showing the duration of incnhafion in different cases. 



