g£4. ®N THE COMPOSITION OF ALCOHOL. 



ptinciples weight, and 12 parts of hidrogen, neglecting the frac* 

 ado|ited in this ^ions. ^ 



^^'^^^' 2^ that two parts by measure of hidrogen gas saturate one 



of oxigen gas, to form water. 



3, that 1000 cubic inches of hidrogen gas, the barometer 

 being at 28 inches, and the thermometer at 10* Reaumur 

 [54*5° F.], at the point of extreme dryness weigh 34*303 

 grs*. 



4, that 100 cubic inches of oxigen gas, under the same 

 circumstances, but at the term of extreme moisture, weigh 

 512-37 grs. 



5, that 1000 cubic inches of carbonic acid gas, under the 

 same circumstances as the last, weigh 693*71 grs, 



6, that carbonic acid gas contains its own bulk of oxigen 

 gas. 



7, that 100 parts by weight of carbonic acid gas at the 

 point of extreme humidity, contain 26 parts of carbon, ne- 

 glecting fractionsf. 



Akohol at The alcohol I employed for this analysis was such as 



2 muriate I-'Owitz and Richter designate by the name of perfect ako- 

 of lime, hot, and which they htve instructed us how to prepare. Its 



specific gravity is 0*792 at the temperature of 16° R,. [68° 

 F.]. I obtained it by distilling common spirit of wine from 

 half its weight of muriate of lime, dried at a nearly red 

 heat, and drawing off only half the liquor. The product 



• The French weights and measures are here retained, as they will be 

 generally throughout this paper. Tr. 



too parts car- "^ Since oxigen gas does not sensibly alter its volume when converted 

 bonicacid con- into carbonic acid gas, the difference of weight between the two gasses 

 tain 26.14 car- j^ equal bulks must give the quantity of carbon contained in carbonic 

 *«"• acid. 



According to my experiments, 100 cubic inches of carbonic acid gas 



weigh 69-371 grs. 



100 cubic inches of oxigen gas 51-237 



Difference 18-134 



Consequently 69"371 grains of carbonic acid gas contain 18*134 graint 

 of carbon; and by the rule of proportion 69371 t 18134 : : 100' 

 26- 14 •, so that 100 parts by weight of carbonic acid gas contain 26*14 of 

 catborf. 



In this paper I have retained the old Paris measures, to render my re- 

 sults more easily compared with those of others. 



was 



