283 Crown Point Section 17 



14. Heavy bedded, pure limestone, containing 

 some veins of calcite. Very hard. Bluish gray in 

 color. Forms the top layers of the small cliff in 

 front of Ft. St. Frederick.- Except for one cephalon 



of AsapIuLS canalis, no fossils were found. 7 ft. 6 in. 103 ft. 10 in. 



15. Heavy bedded, light colored magnesian 

 limestone which weathers on a vertical surface in 

 ridges about an inch apart. Well shown at the 



once secret entrance to the old fort. 7 ft. 3 in. in ft. i in. 



rr Camarella longirostris. c Asaphus obtusus. 



rr Dalvianella testiidinaria. r IllcBnus ovatus. 



rr D. (?) plicifera. c Leperditia canadensis 



r Triplecia gracilis. war. nana. 



r Asaphiis platycephalns. r Primita logani. 



c A. canalis. 



1 6. Lithological chara(5ler same as 15, but car- 

 rying fewer fossils. 5 ft. 116 ft. i in. 



rr Rafinisq2tina alter7iata. c Camarella varians. 

 c Asaphns canalis. 



17. Covered along a sandy beach to the middle 

 layers of the Black River limestone. The top of 

 No. 16 is 40 ft. below the base of the Black River 

 limestone. 



Section C 



Secftion C extends from the road at a point about one-half 

 mile south of the light house across the fields through the old 

 English fort, then from the northern entrance of the fort north- 

 west to the .shore beyond the old "marble quarry". Thence it 

 follows the shore where there is an almost continuous exposure 

 of the strata around to the northwestern corner of the Point. 

 The middle and upper Chazy, all the. Black River, and the lower 

 90 feet of the Trenton are shown. 



