82 RINDERPEST. 



that the scarlet tinge we are noticing is the result only 

 of the congestion of the minute and intricate network 

 of the capillaries, the attendant sign of this vascularity 

 being always present ; while in these plates of Perigoff, this 

 gorging of the arterial plexus is not apparent, the blood 

 seems rather to be effused, its particles impaired and aggre- 

 gating by some molecular attraction (not of course as in 

 the normal adhesion of the rouleaux) ; in short, in the first 

 plate referred to, a bright red, in the second the deep crim- 

 son tinge quite approximating to a dark red ecchymosis. 

 The mucous membrane in both plagues is peeled off or abrad- 

 ed ; but in the choleraic cases, by a different process, and by 

 a movement starting at a deeper point in the mucous tissue 

 than in most cases of the Pest, being covered with mucosity 

 as well as with detached epithelium ; and when these are 

 removed, presenting not simply the spots of membrane run 

 over by vascular engorgement and left seemingly aphthous ; 

 but depressed eschars in the surrounding membrane which 

 is puffed up and anaemic* 



When we follow Perigoff to his Microscopic Eesearches in 

 cholera, we find his tracings of engorgement of the solitary 

 glands and Peyer's plates, and their transformations ; of capil- 

 lary congestion of the villi (villosities of the continental 

 schools), as well as the deeper burrowings in the mucous coat; 

 confirming to a large extent the observations previously 

 made, and giving the starting point, of congestion, inftltra- 

 tion and exudation in most if not all zymotics. We must 



* For confirmation of these and more singular indications and processes of abnormal action and 

 illustrations of its rationale, see pi. V. A., fig. 1, where Brunner's glands deeply inflamed, sur- 

 rounded by injection are ready to ulcerate, summits yellow and containing pus ; the membrane 

 (duodenum) swollen and presenting traces of dysenteric exudation ; also fig. 2 in same plate, 

 where the mucous membrane completely hypertemical, is covered by thick adherent greenish yel- 

 low eflfusion, composed of the debris of plastic globules, epithelial cells, &c. PI. VIII. gives sec- 

 tion of the colon of one who had sufl'ercd from chronic diarrhoea when cholera supervened, and 

 shows the aphthous appearance resulting from the former aft"ection, with hypcncmia and sanguin- 

 eous effusion in the intervening spaces from the latter. Ulcerations of Peyer's plates were seen 

 but three times and then in the cholero-typhoide period. Comp. pi. IX., fig. 6 & 6. PI. XII. gives 

 section of stomach in diptheritio cholera, the mucous membrane being hypenemic, and covered 

 In places by patches of adherent gray exudation, these surrounded by a grey areola ; when the 

 patches are scraped off, the subjacent membrane very hypenpinical. (Comp. pi. VI.. flg. 2.) In the 

 case where the stomach was covered more or less with mushrooms (eaten in Lent by a Russian), 

 the membrane showed a swollen appearancoe, being described as in *' an 6tat catarrhal algu"— 

 hypersemlc with punctated injection. 



