OUTPUT AND CHARACTER OF OIL. 



189 



180 

 300 

 325 

 410 

 420 

 430 

 515 

 525 



595 

 650 



US."") 



700 

 710 

 7::-") 



7! 10 



830 



851 1 

 930 

 935 

 960 



170 



more lasting. The wells in the >- Mount Morris " or " Big Injun " sand 

 produce from 5 to 500 barrels daily, after they have been flowing for a 

 period of thirty days, though some have been known to start off at the 

 rate of 50 barrels an hour when first struck. 



The oil is of a beautiful amber color and compares favorably with the 

 best of that produced from " white sand " territory. Its gravity is 48° to 

 50° as the oil issues fresh from the wells, but this usually falls to 45° by 

 the time it reaches the main pipe line station and starts on its journey 

 through the great pumps of the National Transit company to tide water 

 at Philadelphia. 



The Stratigraphy. 



The Mount Morris Section. — The following record of the Core well num- 

 ber 2, near Mount Morris, kept by Mr. John Garber, contractor, exhibits 

 the geological relations of this oil sand to the overlying beds of the Car- 

 boniferous system in that region : 



Permian or Dunkard Creek series : Feet. Feet. 



Conductor (clay) , » 21 to 21) 



Slate 104 to 125 \ 



Sandstone, Waynesburg 45 to 170 j 



Upper Coal Measures : 



Coal, Waynesburg 10 to 



Limestone and shales 120 to 



Sandstone 25 to 



Limestone (Great limestone) 85 to 



Black slate 10 to 



Coal, Sewickley 10 to 



Limestone, Sewickley and Redstone 85 to 



Coal, Pittsburg ....." 10 to 



Barren Measures or Elk River series : 



Slate (eased at 531 feet) 70 to 



Sandstone, ( 'onnellsville 55 to 



Red shale 35 to 



Sandstone 15 to 



Red shale 10 to 



blue shale 25 to 



Sandstone, Morgantown (salt water at 700 to 785 feet I 55 to 



blue slate 40 to 



Red and blue shale ((Yinoidal limestone horizon ; eaves 



badly and causes much trouble in drilling) 20 to 



Limestone and hard beds 80 to 



Red slate 5 to 



Sandstone, Upper Mahoning 25 to 



Dark .dale 60 to 1020 



Sandstone, Lower Mahoning 30 to L050 



b >\\er ( 'oal Measures : 



Slate, Lighl gray 60 to 11 b) 



Sandstone. Freeporl 80 to ] loo 



Dark slate 25 to L215 



Limestone, Johnstown 40 to I 25 



Dark slate I0to 12 



Sandstone, hard 5 to L300 



Slate 60 to L360 



dOO 



! :>•> 



>!'■> 



310 



