94 REPORT OF THE 



H. Clayey subsoil. 



G-. Limestone, thin-bedded, resembling E., 4 ft. 



F. Sand, light greenish, with some ferruginous streaks — 

 scarcely at all cemented — having laminae dipping 

 north 45°, 4 ft. 



E. Limestone, thin- bedded, with lenticular structure and 

 undulating laminse— streaked with dark, efflorerces 

 with a salt having a cool and somewhat bitter taste, 

 resembling epsom salts, 3 ft. 



D. Sandstone, greenish - gray, friable — the lower half 



browner and harder, 2 ft. 



C. Gypsum, massive, white, hard, in small masses im- 

 pressed in the upper part of B 



B. Limestone, brown, glistening, hard, with streaks of 



green, 8 in. 



A. Sandstone, bluish or greenish, moderately hard, with 



concretionary masses harder and more brown, 3 ft. 



The dip seems to be from this point both north and south. 



The strata, E, become in places highly ferruginous, and ex- 

 hibit a tufaceous structure, which is probably a recent change 

 in the rock. In other places it becomes a true breccia, with 

 angular fragments of a brown limestone, held together by a 

 tufaceous cement. Small stalactites are forming in places 

 where the rock overhangs. 



About 20 rods south from the main bluff, a blue clay is seen 

 at the water's edge, in place of D, the strata, E, being com- 

 mingled with the subsoil. 



The layer, B, is not very persistent, being sometimes quite 

 sandy, and passing into A. 



The gypsum is in places imbedded in the blue sandstone A, 

 in belts. 



To the north of the main section, the limestones, E, become 

 more arenaceous, and the sandstones, D, become shaly and in- 

 crease to 4 feet, while the upper part of A is blue clay. The 

 sand, F, becomes 5 feet. Th© amount of gypsum increases 

 making a varying bed frorn six to twelve inches thick. A sec- 

 ond gypsum layer appears in A, thicker than the other. 



It is unlikely that a bluff of materials embracing so much 

 •soluble matter, has remained exposed to the action of the 



