498 DR EDMUND RONALDS ON AMERICAN PETROLEUM. 



each other by washing with alcohol, did not yield more conclusive results than 

 those already obtained with the mixtures. 



From the foregoing experiments we may, I think, safely conclude, that all the 

 homologues of marsh gas, excepting marsh gas itself, are present in the liquid as 

 it comes to this country, and there appears to be little doubt that marsh gas, and 

 perhaps even free hydrogen, will be found among the gases which are evolved 

 with the oil at the springs. 



