XXX Trans. Acad. Sci. of Sf. Louis. 



The following Is the log of the Welle-Boettler well as given to the 

 U. S. Geological Survey by the driller and the oil and gas shale at 600 

 to 620 feet, was regarded as of Devonian age. 



LOG OF THE WELLE-BOETTLEB WELL. 



Filled ground 0— 20 feet 



Clay 20— 40 feet 



Sand and gravel 40— 60 feet 



Hard gray limestone (shaly) ; a little water 60 — 80 feet 



Soft brown limestone 80 — 100 feet 



Hard brown limestone 100 — 120 feet 



Soft gray limestone; water at 140-160 and 185-240 120—240 feet 



Soft gray shale 240—260 feet 



Hard gray limestone 260—265 feet 



Soft gray limestone and shale 265 — 280 feet 



Gray limestone; show of oil 280-290 and 305-325 280—460 feet 



Very hard gray limestone and chert 460 — 470 feet 



Hard gray limestone 470 — 485 feet 



Soft gray limestone 485—490 feet 



Hard gray limestone 490—510 feet 



Soft dark red shale, oil showing 510—530 feet 



Hard gray limestone 530—565 feet 



Hard gray limestone and shale-caves 565 — 600 feet 



Soft black shale, little oil 600—620 feet 



Soft brown limestone, little oil and gas 620—650 feet 



On the Drummond lot at 3904 Forest Park boulevard a test well 

 was drilled about 700 feet deep. This was 250 feet southeast of the 

 Welle-Boettler wells; another test well was drilled on the east side of 

 Vandeventer avenue, about 400 feet farther southeast, but both were 

 barren. 



At the Tamm glue factory, Manchester and Wabash R. R., two tests 

 were drilled, one of which yielded a little gas at 505 feet and more 

 at 760 feet and which showed a pressure of 42 pounds when shut in. 

 The amount was not encouraging, however, and the Avell is now- full of 

 salt water. 



From samples of the drillings placed at my disposal by Mr. Tamm, 

 the following tentative log of his gas or No. 9' well is herewith sub- 

 mitted. 



LOG OF THE TAMM AVELL. 



Surface clays 0—25 feet 



Limestone, gray 25 — 100 feet 



Limestone, gray, cherty 100 — 125 feet 



Limestone, gray 125 175 feet 



Shale, blue 175—220 feet 



Limestone, gray 220—440 feet 



'There are several shallow water wells on the premises. 



