88 Mr. Davy on a new Gaseous Compound 0/ Carbon and Hydrogen. 



bicarhuret of hydrogen, therefore, ought to afford more light than olefiant gas, 

 for it contains a greater relative proportion of carbon than this gas. The bicar- 

 huret of hydrogen contains 20 + h; olefiant gas 2c + 2h; hence, the effect of 

 the additional proportion of hydrogen in olefiant gas, seems to be to diminish its 

 illuminating power. 



