552 



F. T. THWAITES 



The records as shown in Tables VI and VII illustrate the variable 

 character of the Eau Claire of the southeastern part of the area 



TABLE VI 



Partial Log of Abbott Laboratories Well, North Chicago, Illinois 



Depth 

 (Feet) 



Sandstone, very fine, gray, shaly, calcareous, slightly glauconitic 



pyrite 



Sandstone, fine to very fine, gray, calcareous 



Shale, red, calcareous 



Shale, gray, calcareous 



Shale, mixed red and gray, calcareous 



Shale, gray, calcareous 



Sandstone, very fine, gray, calcareous 



Dolomite, light gray 



Sandstone, fine, gray, calcareous 



Sandstone, very fine, gray, calcareous 



Sandstone, very fine, gray, hard, very calcareous 



Sandstone, exceedingly fiiie, gray, calcareous 



Sandstone, fine, gray, calcareous 



Dolomite, gray to bottom of well 



Total thickness over 



TABLE VII 



Partial Log of Well at Southern Wisconsin Home for the Feeble- 

 minded AND THE Epileptic, Union Grove, Wisconsin 



Depth 

 (Feet) 



Sandstone, very fine, brownish gray, calcareous 



Sandstone, very fine, dark red, very calcareous, glauconitic 



Shale, red with some gray beds, very calcareous 



Sandstone, medium to very fine, pink, calcareous 



Sandstone, medium to fine, light pinkish gray, calcareous . . 



Sandstone, fine, gray, calcareous, coarser toward base 



Sandstone, fine, gray, calcareous 



Sandstone, medium to fine, dark gray, calcareous 



Sandstone, fine, yellowish gray, calcareous 



Sandstone, fine, gray, slightly calcareous 



Sandstone, fine, white 



Sandstone, fine to shaly, red, very calcareous 



Sandstone, exceedingly fine, yellowish gray, calcareous 



Shale, red, calcareous 



Sandstone, medium to fine, pinkish gray, calcareous 



Sandstone, medium to fine, gray, calcareous 



Sandstone, very fine, pinkish gray, calcareous 



Total thickness 



1,040 

 1,070 

 1,120 

 1,140 

 1,165 



1,195 

 1,225 

 1,240 

 1,250 

 1,26s 



1,27s 

 1,280 

 1,285 

 1,290 

 1,335 

 1,355 

 1,360 



under discussion; it is here much more shaly and dolomitic than 

 nearer the outcrop. 



