...others down in the third Venango oil-sand "(Chemung). In Ohio, gas-flows of considerable size have been obtained deep down in the Cincinnati limestone, while...most abundant above the black slates of the Devonian. Of the composition, probable origin, extent of gas territory in the country, and many other interesting...

...others down in the third Venango oil-sand (Chemung) . In Ohio, gas-flows of considerable size have been obtained deep down in the Cincinnati limestone, while...range through the geological column, though it is я significant fact that it is most abundant above the black slates of the Devonian. Of the composition,...

...others down in the third Venango oil sand (Chemung). " In Ohio, gas flows of considerable size have been obtained deep down in the Cincinnati limestone, while in West Virginia they have been found in the Potteville conglomerate: hence natural gas, like oil, has a wide range through the geological column,...

...oil saiul (Ohemung). "In Ohio, gas flows of considerable size have been obtained deep down in tin* Cincinnati limestone, while in West Virginia they have been found in the Pott.«ville conglomerate: hence natural gas, like oil, lias a wide range through the geological column,...

...down in the third Venango oil sand. (Chemung. ) "In Ohio, gas flows of considerable size have been obtained deep down in the Cincinnati limestone, while...announced in the foregoing article were criticised by Mr. Charles Ashburner, geologist in charge of the geological survey of Pennsylvania, who claimed, in...

...down in the third Venango oil sand. (Chemung.) " In Ohio, gas flows of considerable size have been obtained deep down in the Cincinnati limestone, while...announced in the foregoing article were criticised by Mr. Charles Ash burner, geologist in charge of the geological survey of Pennsylvania, who claimed,...

...others down in the third Venango oil sand. (Chemung.) "In Ohio, gas flows of considerable size have been obtained deep down in the Cincinnati limestone, while...Pottsville conglomerate ; hence natural gas, like oil, kas a wide range through the geological column, though it is a significant fact that it is most abundant...

...others down in the third Venango oil sand. (Chemnng.) "In Ohio, gas flows of considerable size have been obtained deep down in the Cincinnati limestone, while...abundant above the black slates of the Devonian." The views expressed in this paper were eriticized by several geologists, but they were as warmly espoused...

...others down in the third Venango oil sand. (Chemuug.) "In Ohio, gas flows of considerable size have been obtained deep down in the Cincinnati limestone, while...that it is most abundant above the black slates of tke Devonian." The views expressed in this paper were criticized by several geologists, but they were...

...others down in the third Venango oil sand. (Chemung.) "In Ohio, gas flows of considerable size have been obtained deep down in the Cincinnati limestone, while...natural gas, like oil, has a wide range through the gcological column, though it is a significant fact that it is most abundant above the black slates...