ACTION or DIFFERENT OASSES OX MEAT. jyj 



exigen gas. On taking it out of the receiver, its stench was 

 not so powerful, and it appeared redder when cut. 



8, Pure hidrogen gas from the vapour of water passed over 

 redhot iron. Over mercury. 



1st day. April the 5th. The meat became of a crimson Exp. 8. m^ 

 fed. drogen from 



From the 2d to the Slst. No change was observed, ex- hot iron over 

 cept that the meat became a little brown ; but it did not «i«rcu»y. 

 acquire a livid hue. It is remarkable, that this meat re- 

 mained reddish, and preserved an appearance of freshness, 

 while pieces i n oxigen gas, and in atmospheric air, grew pale. 

 When taken out of the jar, it had no smell. The gas ex- 

 amined at the end of the experiment rendered lime-water 

 turbid. 



9. Pure hidrogen gas in a corked bottle. 



1st to the 51st day. The meat scarcely grew brown at Exp. 9. Hi- 

 all, but preserved its colour, only appearing a little moist. co^kedfLr* 

 Wh^n taken out the 5 1st day it had no bad smell, but smelt 

 like smoked meat. 



The gas, examined by the test of nitrous gas, gave n^ 

 sensible diminution ; it rendered lime-water a little turbid, 

 and afterward burned vividly. 



10. Pure carbonic acidy from the calcination of chalk. Over 

 mercury. 



1st day. The meat became crimsoned, as in hidrogen. Exp. 10, Car- 



2d to the 11th. No sensible change, and the meat looks pefie^^/from*'^" 

 very fresh. chalk by heat, 



13th to the 22d day. It grew paler. °^" mercur,. 



51st day. The meat was uniformly pale, looked as if it 

 had been dressed, and appeared nearly of the same firmness. 



It was neither moist nor viscous; and had not the least 

 smell, or any other sign of putridity. 



The gas was absorbed by lime, except a trifling residuum, 

 that did not amount to 0*01. 



11. If this experiment be repeated in corked bottles, and Exp. 11. Th» 

 tbe meat be enclosed in one while the gas is hot, and in the ^"^^^ ."■<>■ 

 <»ther not till it has grown cold; it will be found, that the corked bottles. 



meat 



