300 Mr. T. Andrews's Chemical Researches 



Crassajnentum. — The proportion of serum to crassamentum 

 was, 



Serum 40*5 



Crassamentum 59*5 



100-0 

 But the same observation appHes to this as to the former de- 

 termination. 



The crassamentum contained 68*55 per cent, of water ; it 

 contained also '075 gr. of pure fibrin, equivalent to '26 per 

 cent., the blood weighing 28"937 gr. Hence it consisted of. 



Water 74*93 



Albumen and salts . . . 11*60 



Red globules 13*21 



Fibrin *26 



100*00 

 Specimen 4. Lunatic Asylum. — This blood was drawn from 

 the jugular vein of a female patient (aet. 20), who had rallied 

 from collapse for about a day by artificial excitement, the 

 blueness having disappeared, and the natural warmth having 

 been restored. The blood was obtained six hours after death. 

 It did not coagulate, but the red globules subsided, leaving the 

 serum yellow and pure. 



Serum. — Sp. gravity 1*040. 9*940 grammes of it were sub- 

 jected to analysis, and found to contain, 



Water 866*72 



Albumen and salts. . . 133*28 



1000*00 

 The saline matter was found to be about 1*2 per cent, but the 

 experiment was not made with much precision : its solution 

 in water was alkaline, effervesced with acids, and contained 

 both potash and soda. 



The blood was found to contain, 



Water 76*07 



Albumen and salts ... 1 1 '69 

 Red globules 12*24 



100*00 

 There was no fibrin present. 



Having thus ascertained the composition of the blood in 

 the severer stages of the complaint, I next proceeded to exa- 

 mine it in the incipient stages. 



Two of the first specimens I procured were from the Cho- 

 lera Hospital, taken from patients affected with diarrhoea and 



