Account of a Well D HI led for Oil or Gas at Oxfordr 0. 73 



Notes on specimens saved from various depths in the Oxford, 

 Ohio, well, bored May and June, 1887. 



^7 feet. Piece sand stone. ") ^^ -^ 



'^' ,. [ Drift 40 to -so feet, 



" limestone; water worn. ) 



48 



59 

 96 



160 ' 



205 ' 



230 ' 



235 ' 



240 ' 



248 ' 



253 ' 



258 ' 



260 ' 



265 ' 



305 ' 



380 ' 



410 ' 



585 ' 



595 ' 



610 " 



680 " 



750 " 



775 " 



787 " 



790 ' 



lio ** 



830 " 



Large fragment, hard blue limestone. \ 



Fragments of hard limestone with 

 fossils, Orthis bifoj'ata, (young), 

 O. testudtnaria, Zygospira tnodcsfa. 



Limestone. 



" with fragments of Asa- 



phus. 



Limestone and clay. 



with fragment 



of Monticulipora. 

 Limestone. 



and shale. 



Limestone and 



Shale 

 About 360 feet 



Blue Shale. 



Blue shale. ' 



Blue Shale about 380 feet. 



Dark limestone, soft at top, 5 feet 

 drilled in | hours ; some shale. 



Dark limestone, with lighter parti- 

 cles and small amount of shale. 

 Hard, Three feet drilled in 2^ 

 hours; fragments of Orthis. 



Same as above, finely ground up. 

 Pieces about the size of wheat 

 grains. 



Same but darker. 



Dark Lime- 

 stone. Divis- 

 ion between 

 Cincinnati Gr. 

 and underlying 

 Trenton, 50 

 feet. 



