VOMITUS. 393 



The green colour seems undoubtedly due to the presence of 

 biliverdin, which is probably formed in the stomach by the 

 action of the acid solution of hydrochlorate of lime on the bili- 

 phsein. Hence the occurrence of green vomiting need not be 

 regarded as indicative of any peculiar morbid change. 



A brief notice of a green fluid vomited during an attack of 

 sporadic cholera, may be found in vol. 1, p. 18, of Heller's 

 Archiv.] 



Vomitus with urinary constituents. 



It is stated that in those cases in which the formation and 

 excretion of the urine are impeded its constituents are discharged 

 with vomited matters. 



Nysten 1 and Barruel had an opportunity of analysing a 

 vomited fluid which contained urea, uric acid, and the ordinary 

 urinary salts. 



[Dr. Halliday Douglas has reported a case in which urea was 

 detected in the vomited fluid. London and Edinburgh Monthly 

 Journal of Medical Science, vol. 1, p. 410.] 



Vomitus in carcinoma. 



In carcinoma of the stomach a fluid is vomited which de- 

 posits masses of chocolate or coffee-coloured flocks on the bottom 

 of the vessel, while others are observed on the surface of the 

 fluid. On examining a few of them under the microscope we 

 observe a considerable quantity of large rounded cells with yellow 

 granular contents, and also a very great number of fat-vesicles, 

 some larger and others smaller than the cells. Remnants of 

 food, and especially undigested starch-granules, are likewise 

 frequently observed. The latter may be easily mistaken for 

 fat-vesicles, but moderately strong compression causes their 

 envelopes to break, and on the addition of a solution of iodine 

 they assume a blue colour. By this test all ambiguity is 

 avoided. 



[Dr. George Wilson has published a notice of the chemical 

 and microscopical characters of the fluid ejected in pyrosis 



1 Journ. de Chem. Med. 1820, Ser. Ill, p. 257. 



