Ashburner.] O'iXJ [March 18, 



19. Coal, Alton Lower 3' 



20. Sandstone, Kinzna creek S. S 45' 



21. Shale and Coal 10' 



22. Sandstone and conglomerate, Olean conglomer- 



ate 50' 



23. Slate, sometimes containing a coal bed 2' thick 10' 



Total 406' 



24. Grit, clay and gravel (top of St. Mary's 



drillhole) 18' to 18' 



25. Sand 18' " 50' 



26. Interval. 45' " 95' 



27. Sand 25' " 120' 



28. Interval....... 140' " 260' 



29. Sand 16' " 276' 



30. Interval 134' " 400' 



31. Sand. 20' " 420' 



32. Interval 205' " 625' 



33. Red shale, sandstone and slate 335' " 960' 



34. Interval 12' " 973' 



35. Sand 49' " 1021' 



36. Interval 369' " 1390' 



37. Red sandstone 25' " 1415' 



38. Interval 35' " 1450' 



39. Reddish rock 5'±" 1455' 



40. Interval 215' " 1670' 



41. Sand 44' " 1714' 



43. Gray and black slate, containing shells and 



streaks of red 286' " 2000' 



43. Fine bluish-white sand 10' " 2010' 



The record of the well is given just as it was reported by Mr. W. "W. 

 Ames, who had copied it from the driller's book. The undescribed inter- 

 vals contained generally gray slate. 



A small gas vein was struck at a depth of 550 feet ; at 972 feet a very 

 much larger one was found. At a depth of 450 feet and 1020 feet salt 

 water was encountered. The geological horizon of the Bradford Oil sand 

 is at least 250 feet below the bottom of the St. Mary's test well. 



The section may be grouped into formations as follows : 



CARBONIPEROtrS AgE. 



XIII. Lower productive Coal Measures (1 to 15 incl.).. 335' 



XII. Pottsville conglomerate (16 to 22 incl.) 161' 



XI. Mauch Chunk shale (23) 10' 



X. Pocono shales and sandstones (34 to 32 incl. ) . . . . 625' 



Total 1031' 



