on the Blood of Cholera Patients. 299 



yellow and pure, and the crassamentum much darker and 



more bulky than usual*. 



Serum. — Sp. gravity 1 "045; alkaline reaction ; taste saline, 



similar to healthy serum. 14-'377 grammes of it were analysed 



in precisely the same manner as the preceding specimen. Its 



constituents were, 



Water 847*02 



Albumen 144*36 



Chlorides of sodium and potassium, 1 



with free alkali / 



Carbonate and phosphate of soda . . 1'62 



Sulphate of potash '22 



Phosphate of lime with a trace of iron "82 



1000-00 

 Crassamentum. — The blood weighed 77*94 grammes, and 

 the crassamentum, with a considerable portion of impure se- 

 rum, 58*27 gr. The latter contained 47*604 gr. of serum, and 

 •231 gr. of fibrin, of a buff colour and pretty pure. The 

 composition of the blood was therefore. 



Water 73*11 



Albumen and salts . . . 13*21 



Red globules 13*38 



Fibrin '30 



100*00 

 Specimen 3. Limatic Asylum, near Belfast. — This was 

 taken from a female patient (aet. 20) in the state of collapse, 

 the radial pulse not being perceptible when the blood was 

 drawn. It flowed in a continuous stream for a few seconds, 

 but afterwards trickled with extreme difficulty. The patient 

 died next day. The blood was black and thick ; it coagulated 

 as usual. 



Serum. — Sp. gravity 1*040; of a pure yellow colour; 4*811 

 gr. left, by desiccation, *636 gr. of albumen, and salts. It con- 

 tained therefore. 



Water 865*95 



Albumen and salts. . . 134*05 



1000*00 

 The saline matter was not weighed, but its solution was alka- 

 line, and effervesced with acids. 



• In this, as well as in all the following eases, the blood was received into 

 a vial, which was immediately closed. This precaution was necessary, as 

 scrum exposed to the air evaporates with great rapidity. 

 2 Q 2 



