GAS, HYDROCARBON 



Specific gravity of average gas before purification = -65886. 

 after =-59133. 



603 



This process is especially adapted for the manufacture of gas on a small scale, as in 

 private houses or small manufactories* The necessary operations involve little trouble 

 and unpleasant effluvia. 



Dr. Frankland has also investigated the hydrocarbon process as applied to coals and 

 cannels, and the following is a tabulated summary of his experimental results ; 



Summary of Experimental Results. 



Table showinff the quantity of Coal or Cannel requisite for producing light equal to 1,000 

 Sperm Candles, each burning 10 hours at the rate of 120 grs. per hour. 



Table showing the quantity of Gas requisite for producing light equal to 1,000 Spew 

 Candles, each burning 10 hours at the rate of 120 grs. per hour. 



