154 NKW VOKK STATK .All'SHlM 



>,"<*w Scot hind 1i;m1s ;m rod; slu'licrs. ow iiiii' lo i;aj)l(l disinio^ralion 

 of llic iiiidcilyii'ii beds at llic conlacl line [sec ]»1. 1L>], Tlio 

 lH'a\v licds of roclv arc (raNcrscd hv j'diit cracks, wliicli by solu- 

 tion t)( (|Ucnl ly become widened into lissnres of considerable 

 extent. 



Exposures are imnierons in the Scboharic^ \all(\v ])iit less fre- 

 quent and accessible in liiat of llie Cobleskill. On both West and 

 East hills and on Dann's hill good clitts of this rock extend feu- 

 miles above the New Scotland slope. One of the best exposures 

 is in front of th(> home of Mr George Acker on West hill, where a 

 clitV of IT).', f(»et of the limestone may be seen extending for some 

 (listame just below the road. Above this are .l^ feet of similar 

 rock, after which the limestones become somewhat finer grained, 

 darker juid more compact, with fewer organic remains. These 

 nj)per beds with a thickness of 10-15 feet may represent a part 

 of the Port Ewen or Upper Shaly bed series, Avhich is othei'Tsise 

 unre])reseuted in this vicinity. At any rate the}' are lithically 

 identical with beds occupying a similar ])osition at Becraft moun- 

 tain and which there represent the Port Ewen beds. 



Jnchnling these beds with the l>ecraft, from which they scarcely 

 diller lithically, we have about 30 feet of strata between the New 

 Scotland and the Oriskany. At Conntryman hill near New Salem 

 the Becraft has a thickness of only 17 feet and is at once suc- 

 ceeded by 2 feet of Oriskany. At Clarksville, a mile farther 

 south, it is 20 feet thick and is succeeded by 1 foot of Oriskany. 

 At Uecraft mounlain. where the lhi(kn(\ss of the liccrnft is 45 

 feet, there are from 2(1 to 2.") feci of Port I-^wi'U between it and 

 the Oriskany. the transition being aii]:ari>nt ly a gradu;;l on(\ 

 At Kondoul on i he other hand, where (he Becraft has a thickness of 

 about .'I.") fe( 1, it is succeeded by 11(1 feel or more of Port Ewen or 

 rjtiicr Shaly beds. The great thickness of the Port Ewen beds 

 hei-e is mainly due to a diflei'ence in thi^ material of which it is 

 made, this being in a large measure argillaceous and silicious 

 elastics, whereas al !5eci-af( mountain it is mainly a de])Osit of 

 lime sandrocks. 



