352 Formation of the Acetous Acid in the Stomach, 

 preceding analysis ; they differ still more from those obtained 

 by M. Lampadius. M. Klaproth finds 



Silex - - - - 62-50 



Magnesia _ _ - S' 



Oxide of iron _ - - 4* 



Charcoal - - - 0-75 



Alumine . - _ O'J-'i 



Lime ... - o-23 



Water - - - - 22- 



Total 98-25 



When distilled in the pncumafo-chemical apparatus, a 

 liquid is obtained of a bituminous smell, and containing a 

 trace of ammonia. There came over also eight cubical 

 inches of gas, which consisted of carbonic acid and of car^ 

 bonated hydrogen gas, proceeding from a part of the decom- 

 posed carbon. The acids decompose this fossil without ef- 

 fervescence and without loss of weight, although M. Lam-;; 

 padius asserted that he found 0-27 of carbonic acid. 



LXf. Notice upon the Formation of the Acetous Acid in 

 ■ the Sto7nachs of Persons luho have a had Digestion. By 



M. PEfiPERES, Apothecary at Azilles. Communicated 



by M. Parmentier*. 



It is a fact upon which all chemists are agreed, that during 

 di'f^estion of certain substances the acetic acid is formed : 

 the experiments I am now about to mention are therefore 

 conformable to the phsenomena that have been formerly ob- 

 served. But it is not equally well admitted that the spi- 

 rituous fermentation can take place in the stomach : this is 

 only an assertion of M. Perperes himself. We are of opi- 

 nion, however, that this subject is well worthy of his at- 

 tention, and wc invite him to pursue his researches. 



For a lonP" time every one has been convinced that fer- 



* From Annates de Cinialc, torn. Ix. p. L'80. 



mentation 



