DISEASES OF SWINE AND OTHER AMMALS. 



79 



ExpEitniENT No. 4. 



Wlxitc female 2)1 g, cUjM circles oldj no sjye-cial breed. Formcrl >j fed on rcnv offal at a dauylder- 



heuse. 



Post-mortem examination. — Has been piirgiug ; feces fetid and bright yeUow. 



Skin : Nearly covered ■with black spots of Irom one to two lines in diameter, and 

 evidently formed by sloughs or small necrotic patches of cuticle, infiltrated with blood 

 and dried up. The median line of the belly between the rows of teats is almost de- 

 void of these spots. 



A xnu'ple rash in spots averaging one line across exists in different jiarts of the body, 

 but is most abundant on snout, ears, buttocks, root of tail, a'nd limbs, especially ou 

 the lower parts and inner sides. At certain pohits, as on the pendant half of the ears, 

 on the hocks, in the region of the arms, and on part of the snout, there is a unitbrm 

 leaden discoloration. The inner sides of the arms have similar but laore circumscribed 

 patches. 



Digestive organs: A deep purple blush extends along the line of panilhe on the right 

 border of tl)e tongue. Sinular spots exist in the jiosterior nares. Salivary glands are 

 lialo and normal. The guttju-al lymphatic glands have s])ots of congestion on their 

 surface, but not extending into their interior. 



Abdomen : No cifusion. Three hydatids are found attached respectively to the 

 l)ostorior surface of the stomach, to the back of the liver, and to the mesocolon. 



Stomaeh : Full of undigested food, yellow at jiylorus. No marked congestion nor 

 softening. No parasites. 



ISmaU intestine : Duodenum without extra Aascularity ; its epithelium .gray, pig- 

 mented, and easily detached. Jejunum and ilium had circumscribed spots of conges- 

 tion one-half inch in diameter on an average, and in one case slightly eroded. 



Large intestine : Ca;cum presents three ulcers, each one-fourth inch in diameter, hav- 

 ing a circular elevated mass of diriy-white (leposit, ajjparently non-vascular, and a 

 very slightly reddened base. The matter on the surface of the ulcer cousisced of cells, 

 round, angiilar, and of other forms, much granular matter and myriads of round and 

 linear moving bacteria. None of rhcso ulcers appear to be situated on the solitary 

 glands. The same remark applies to the congestions and erosions of the small intes- 

 tines. Colon and rectum natural. 



rarasltcs: The small intestines contain three asearid(S (A. Siiiilu). The colon con- 

 tains a young whip-worm (tricoeeplialiis crcnatns). The coats of the intestines at the 

 points of congestion and (;lsev>hcre \vcr(> carefully exani'ned lor parasites, but without 

 result. The muscular tissiu> of th(» diaphingm was also examined iu vaiu. 



Lirer : Two small cysts, each one-lialf line in length, exist ou the middle lobe. They 

 had thick fibrous walls ami licjuul contents in which the microscope detected cell forms. 



