122 FOUBTH REPORT — 1834. 



sether, inalterable by hydrochloric and nitric acids, rendered 

 brown by sulphuric acid, soluble in potass with slight heat, and 

 precipitated from the solution by hydrochloric acid in white 

 flakes. If the excess of acid be washed off with water until the 

 latter no longer reddens the vegetable blues, it comniimicates to 

 alcohol, when essayed therewith, the property of reddening those 

 colours. Hence the oily part of the blood appears to be con- 

 vertible by potass into an acid substance, and is considered by 

 Lecanu as an immediate principle of the same. 



From B treated with alcohol was obtained a brownish yellow 

 liquid and a residvie C. 



-The liquid, on being evaporated, furnished an orange yellow 

 mass, insoluble in aether, but soluble in water and alcohol, which 

 then manifested alkaline properties. The watery solution af- 

 forded a precipitate with hydrochloric and nitric acids, and 

 Avith solution of galls ; — the same as that considered by Berze- 

 lius to be a mixture of animal matter and lactic acid ; by other 

 chemists as resembling osmazome. It is considered by Lecami 

 to differ from osmazome in as much as the latter is not precipi- 

 table from its solution by acids. 



C was found insoluble in aether and alcohol at 40° : treated 

 frequently with boiling alcohol at 33°, it gave the hydrochlo- 

 rates, and some extractive matter easily separable by alcohol at 

 40°. This new residue, treated with cold distilled water, was 

 nearly entirely dissolved, except a small quantity of a brown 

 matter insoluble in boiling water and alcohol, and considered 

 as a mixture of colouring matter, albumen, and fibrin. 



From a portion of the saline solution, white flakes were abun- 

 dantly precipitated by acetic acid, — a gelatinous albumen, which 

 Lecanu considers, from the mode in which he obtained it, to 

 exist in this form in the blood. Another portion of the saline 

 solution was evaporated, the residue calcined, and the salts de- 

 termmed*. 



1000 parts of blood, according to the above, consist as fol- 

 lows : — 



First Second 



Analysis. Analysis. 



Water 780-145 785-590 



Fibrin 2-100 3-565 



Albumen 60090 69415 



Colouring matter 133-000 119626 



Crystallizable fatty matter 2-430 4-300 



Oilymatter 1-310 2-270 



Extractive matters soluble in alcohol and water 1-790 1 -920 



Albumen combined with soda 1-265 2-010 



• Annalei de Chimie et de Physique, torn, xlviii. p. 310. 



