IK77.J '^oT [Sadtloi 



3. 4. 



Carbonic Acid 71 .35 



Carbonous Oxide 24 .26 



Ethylene series 06 .56 



Hydrogen o.iiO 4.79 



Marsh-gas 85.40 89.65 



Ethyl-hydride 7.96 4.39 



Propyl-hydride trace trace 



Oxygen .03 



Nitroo;en 



100.00 100.00 



II. Gases from Warren and McKean Counties. 



1. Sheffield Well in Warren C^ounty. Collected in August, 1876. 



2. Wilcox Well in McKean County. Collected in August, 1876. 



1. 2. 



Carbonic Acid 09 .02 



Carbonous Oxide 24 .15 



Ethylene series .62 



Hydrogen 3.12 7.55 



Marsh-gas 78.42 62.37 



Ethyl-hydride 18.00 29.29 



Propyl-hydride ... trace trace 



Oxygen .13 



Nitrogen 



100.00 100.00 



III. Gases from the Lake Erie border in Pennsylvania and Nero York. 



1. Erie gas from Erie, Pa. Collected in August, 1876. 



2. Older Fredonia Well. Collected in August, 1876. 



3. Newer Fredonia Well. Collected in August, 1876. 



1. 



Carbonic acid 30 



Carbonous oxide 61 



Ethylene series 



Hydrogen 43 



Marsh-gas 40.33 \ r 69.44 



Ethyl-hydride 58.26 V 98.59 \ trace 



Propyl-hydride trace ' ' 29. 15 



Oxygen 07 



Nitrogen 



100.00 



