114 Chemical Researches on the Blood, 



other apparent change was produced for some weeks ; whert 

 on removinfif it from the acid at the end of that period, it 

 had acquired the properties of that modification of fat 

 which is described by Fourcroy under the name of adepo- 

 cire*. 



A mixture of one part of nitric acid with three of water, 

 acted more rapidly upon the coagulum of chyle; a portion 

 of it was dissolved^ and when the acid was carefully de- 

 canted from the remainder, it was found to possess the 

 properties of gelatine. But when heat was applied, or 

 when a stronger acid was employed, the action became 

 more violent, nitrogen and nitric oxide gas were evolved, 

 and a portion of carbonic acid and of oxalic acid were pro- 

 duced. 



7. Muriatic acid in its undiluted state does not dissolve 

 the coagulum of chyle; but when mixed with an equal 

 quantity of water, or even more largely diluted, it dissolves 

 it with facility, forming a straw-coloured solution, which 

 is rendered turbid when the alkalies are added to exact sa- 

 turation, but no precipitate falls, nor cnn any be collected 

 by filtration. When either acid or alkali is in excess in 

 this solution, it remains transparent. 



8. Acetic acid dissolves a small portion of the coagulum 

 of chyle, when boiled upon it for some hours* As the so- 

 lution cools, it deposits white flakes, which have the pro- 

 perties of coagulated albumen. 



9. The action of oxalic acid is nearly similar to that of 

 the acetic, but neither citric nor tartaric acid exert any 

 action upon this coagulum. 



10. The destructive distillation of this substance affords 

 water slightly impregnated with carbonate of ammonia, a 

 small quantity of thin fetid oil and carbonic acid and car- 

 buretted hydrogen gas. 



The coal which remains in the relort i« of difficult in- 

 tineration ; it contains a considerable portion of muriat of 

 soda and of phosphat of lime^ and yields very slight traces 

 of iron. 



C. 1. The serous part of the chyle becomes slightly tur- 

 bid when heated, and deposits flakes of albninen. 



2. If after the separation of this substance the fluid be 

 evaporated to half its original bulk, ai a temperature not 

 exceeding 200^ Fahrenheit; small crystals separate on 

 cooling, which, as far as I have been able to ascertain, bear 

 a strong resemblance to sugar of milk : they require for so- 



• Jf#m, de I'Acad. des Sciences, i789. 



lution 



