318 THE MICROSCOPIST. 



and scissors, or the vomit should stand some time in a 

 conical glass and a little of the deposit removed with a 

 pipette. 



Torula and other forms of fungi are often seen in vom- 

 ited matters. The vomit containing the sarcina ventriculi 

 generally ferments like yeast. 



The color of the " coffee-grounds vomit" is due to dark- 

 brown pigment, probably the altered coloring matter of 

 blood. 



Some specimens of cholera vomit showed numerous 

 flocculi, consisting of epithelium. The clear fluid of py- 

 rosis contains only a little epithelium and a few small oil- 

 globules. The green voniit depending on bile contains 

 cylindrical epithelium from the gall-ducts, scaly epithe- 

 lium, flakes and masses of biliary coloring matter, and fat- 

 globules. 



Dr. Beale records a case of the detachment of flakes of 

 stomach epithelium in a case of scarlet fever. 



Biliary matters, as cholesterin, etc., and even small gall- 

 stones, have been rejected by vomiting. 



VII. INTESTINAL DISCHARGES. 



i 



Microscopists are not unfrequently called upon to ex- 

 amine dubious matters passed from the bowels. Dr. Ben- 

 net describes one case of yellowish pulpy masses passed 

 with the stools as consisting of undigested potato skins, 

 and another made up of a network of confervoid growths 

 developed in the intestinal canal. In one case, seen by 

 the author, tormina, etc., were produced by skins of grapes ; 

 another case exhibited the skin or testa of a large seed, 

 as the tamarind. These instances show the necessity of 

 the observer being familiar with various botanical and 

 histological appearances. 



Blood-globules in feces retain their natural appearance 

 in inverse proportion to the distance of the hsemorrhagic 

 point from the anus, so that quite fresh blood will indicate 



