DISEASES OF SWINE AND OTHER ANIMALS. 

 Experiment No. 5 — Contiuued. 



81 



Fost-mortcm examination. — SJdn: Presents many painiles or slightly pink conical elte- 

 vatious, just raised enongh to bo felt by tlie finger ; also black concretions like pin- 

 lieads and up to twice or thrice that size. It is, however, much cleaner than it was a 

 week ago. 



Dif/estive organs : Mouth normal, likewise the pharynx, larynx, and adjacent lym- 

 phatic glands. 



Stomach : Has its mucous membrane dark brown along the great curvature, hut with- 

 out any extravasation, ulcer, or recent lesion. 



Small intestines: Have a few spots of congestion, but these are very circumscribed. 

 They contain twelve ascarides. 



Lai-f/e intestine : With few and slight patches of congestion. No enlargement of 

 Peyer's i^atches, nor solitary glands; no erosions. The cajcum contains six whip- 

 worms. 



Lympliatic glands of the mesentery are mostly gray on the outside from pigmentary 

 deposit, but normal in their interior. The pigmentation is evidently the result of a 

 former blood extravasation, as is so constantly seen in the earlier stages of the disease. 

 The blood coloring matter is being transformed into black pigment, as a concomitant 

 of convalescence. 



Liver : Presents several hard yellow concretions as largo as peas, also spots and 

 patches of purple. Similar rounded yellow concretions are found in the mesocolon. 

 They are covered hy a reticulated membrane, and are probably the remnant of some 

 para.sitc. Gall-Madder very full (the pig had been killed fasting), bile green, glairy. 



Spleen and panercas : Normal. 



Judneiis : One contains two hydatids ; excepting marked pallor of the cortical sub- 

 stance they arc otherwise normal. 



Hydatids : Nine of these are found in different parts of the peritoneum. 



Heart : Eight side nonnal ; contains a small clot. 



Left ventricle: Has numerous patches of extravasation, of a deep claret color, sit- 

 uated mo.stly on the carnw colnmnm and museuU 2>apilaries. These have their- scat in 

 and beneath the serous lining, and barely extended into the muscular substance. The 

 nmrgiu of the bicuspid valve is slightly thickened. 



Liinf/s : Have a very few red consolidated lobulettcs ; of the remainder many arc only 

 partially dilated, though they have nearly their normal color. 



Parasites : The terminal main brunchium of tlie right lung contains from thirty to 

 forty worms (Stronfiylns clonyatiis). The lobules coiTCspondiug to this bronchiiun Avero 

 slightly collap.sed, but not consolidated nor congested. 



Lymphatic glands of chest almost unchanged. 



Brain : Healthy. 



A microscopic section from a petechia on the heart showed, in addition to the blocked 

 capillaries and blood extravasations, a tine example of the curious ovoid i>arasitea 

 long known as Eainey's cysts. 



SAV 



