287 
Quantity of Carbon in carbonic Acid . 
Calculation by Oxygene. 
aoo : 33,82 : : 28,25 : 9>55 grains of oxygene 
consumed 3,80 plumbago. 
* 3>35 
Calculation by carbonic acid 13.35 
First Experiment on animal Charcoal. 
Thermometer 6o° Fahrenheit, barometer 30,23. 
Muscular fibre distilled in a coated glass retort left a black 
shining coal, 4 grains of which were put into the tray. Our 
oxygene left a residuum of 2 parts in 100. The tray and its 
contents being placed in the platina tube, was heated to red- 
ness for 8 minutes. The first time the gas was passed, a lam- 
bent flame filled the whole length of the glass tube, and the 
gas became turbid or milky. It was passed frequently through 
the heated tube, but we observed no repetition of the flashes. 
Hence we conjecture that if the diamond had contained hy- 
drogene, we should probably have had a similar appearance. 
After the experiment all the apparatus was, as usual, perfectly 
tight, and the volume of gas unaltered. On examining the 
platina tray a minute portion of charcoal remained, and a quan- 
tity of saline matter adhered to it so firmly, that it became 
difficult to ascertain the quantity of carbon consumed, and we 
forbore to make the calculation ; we however examined the 
ffas. 
O 
Lime water absorbed 40 parts from 100 
The tests for oxygene 54 
Residuum - - 6 or an increase of 4 p Cl* CGIlU 
