MORBID ANATOMY 85 



pyloric valve. From the opening of bile duct a few drops of thick bile 

 can be expressed. Remainder of small intestine not markedly 

 changed. The Peyer's patch in lower ileum has some of its follicles 

 enlarged from which caseous masses can be expressed. 



" L,arge intestine contains much sand and gravel. Mucosa of 

 caecum of a dark slate color. The summit of the folds of a purplish 

 hue. Free edge of valve bordered by a thin slough. On Feyer's patch 

 near valve areas of necrotic tissue of a yellowish color, resting on a 

 firm, yellowish-white base three-sixteenths of an inch thick. Upper 

 colon has its mucosa of the same dark slate color, merging into a wine 

 red. Two ulcers one-eighth of an inch in diameter observed. In lower 

 colon congestion slight and gradually disappearing towards rectum. A 

 small number of circular whitish erosions, apparently associated with 

 the solitary follicles. 



"Thorax. On the left lung, the ventral and cephalic lobes are in- 

 terspersed with small regions of collapse. The remainder of the lobes 

 very emphysematous and hyperemic. Of the right lung, the anterior 

 half (i. e., including cephalic, ventral, and adjacent portion of principal 

 lobes) hepatized, covered by a thin false membrane, gluing the various 

 lobes lightly to each other and to chest wall. The diseased lobes show 

 the regular mottling in the upper, dorsal portion. As we proceed to- 

 wards the ventral portion the mottling is less distinct, the tissue firmer 

 and interspersed with small, irregular, necrotic foci. The smaller 

 bronchi contain a thick, whitish pus. In ventral lobe a portion of the 

 parenchyma as large as a marble completely converted into a grayish- 

 yellow homogeneous mass. Of the principal lobe about one-third or 

 one-fourth hepatized. The mottling of surface very regular. On sec- 

 tion grayish, circumscribed areas one-half an inch in diameter inter- 

 spersed. Over tnese masses the pleura is converted into a wrinkled, 

 roughened, hide-like membrane. 



" Trachea and bronchi contain small quantities of foamy liquid in- 

 termingled with yellowish particles. Bronchial glands barely enlarged, 

 firm ; some lobules pale, others reddened. 



"Bacteriological notes. At the autopsy an agar tube was inoculated 

 with a platinum loop lightly rubbed over the pleural exudate. On the 

 following day a thin grayish growth with condensation water clouded. 

 Examination of hanging drop and stained cover-glass preparations shows 

 only swine-plague germs. 



"In cover-glass preparations of hepatized lung tissue a large number 

 of germs resembling swine-plague bacteria were seen. 



"With a bit of hepatized lung tissue, a rabbit was inoculated subcu- 

 taneously at 2 p. m. The rabbit was dead next morning at 8 .\. m., i. e., 

 in less than 18 hours. In spleen, liver, and blood preparations numer- 



