53 



the rocky shore of New England, and the roek bound coasts 

 of other regions. 



Beyond the first of these projecting points, another thrust 

 fault of similar character to the "uplift," appears in the 

 bank. As in the case of the latter, this fault passes upward 

 into a monoclinal fold, while the lower strata alone are 

 fractured, portions of them being turned on end. 



From the point where the shale appears again in the 

 bank, something over three miles below the mouth of 

 .Eighteen Mile Creek, as far as Sturgeon Point, the cliffs are 

 comparatively low, and composed wholly of the black 

 Naples or Gardeau shales. Sept aria are common in these 

 shales, and they often reach a large size. One of these 

 which, I observed in the bank some years ago, was per- 

 fectly elliptical in outline, its length and thickness being 

 twelve and ten inches respectively. It had been split in two 

 by a joint crack, and the septarian structure was clearly 

 visible. The shale above and below curved around the 

 concretion, this being caused by the settling of the whole 

 mass upon the shrinking of the clay beds during the process 

 of lithification. 



Before reaching Sturgeon Point, the shale disappears, and 

 the banks for some distance are composed of sand and clay, 

 with occasional outcrops of the shale near the water's edge. 

 Septaria of great size are common on the beach. At Stur- 

 geon Point the shale appears again in the bank, and is 

 visible for some distance. It is black, highly bituminous, 

 and contains plant and fish remains. The latter are oi 

 great interest, and are occasionally found in a very good 

 state of preservation. 



The following notes on the fish-remains found up to date at Sturgeon 

 Point, were kindly furnished by Mr. F. K. Mixer, who has for many 

 years studied the fish horizons of this vicinity : 



"The first of the remains described from the shales at Sturgeon Point, 

 was the dorso-median plate of a new species of Dinichthys, which by its 



