336 J. E. WOLFF AGE OF THE STOCKBRIDGE LIMESTONE. 



The first, about three miles south of the railroad, half a mile southeast of 

 Clarendon Springs, is on the north side of a barn standing on the west side 

 of the hill road to Centre Rutland. The bluish sandy limestone contains 

 numerous crinoid stems and occasional plates, and rarely a small branching 

 bryozoan with large cells. The forms are identical with those in the West 

 Rutland valley. The locality is near the eastern border of this (Centre 

 Rutland) belt. 



The second locality is a few feet from the contact of this limestone with 

 the schists on the west. It is in the northwestern corner of Clarendon town- 

 ship, in the bed of a stream crossed by the road from West Rutland to 

 Clarendon Springs, about two hundred feet east of the covered bridge. A 

 few crinoid stem rings were found here. This locality is about two and a 

 half miles south of the railroad. 



The third locality is barely a mile south of the bend made by the railroad 

 in passing from Centre Rutland to West Rutland. It is on Boardman hill 

 (the southern continuation of Pine hill), a few hundred yards south of the 

 road ascending the hill from West Rutland, three hundred feet northwest 

 from a new marble quarry, and about two hundred feet across the strike from 

 the western edge of the limestone. The fossils found consist of a few crinoid 

 stems. 



The belt of limestone in which the fossils occur at these three localities 

 was traced almost without break to Centre Rutland and into the Centre 

 Rutland belt. In the same way the schists bounding it on the west were 

 followed into the schist ridge separating the Centre Rutland and West Rut- 

 land limestone belts. 



It seems therefore established that the Centre Rutland belt is of the same 

 general age as that of West Rutland (" Trenton-Chazy-Calciferous"), and 

 that the Cambrian Rutland limestone is either not represented in it at all, 

 or at best by a very small strip. 



Conclusions as to Structure. — The Avriter has given little attention to the 

 structure of the schists between the Centre Rutland and West Rutland val- 

 leys. The cleavage dips steadily eastward, but the positions of the strati- 

 fication planes can be seen to vary greatly both in direction and amount of 

 dip, so that only careful study can determine, the true structure. The same 

 statement must be made regarding the West Rutland limestone and the 

 schists of the Taconic range beyond. 



The facts here stated prove that the limestone of the Rutland valley is of 

 lower Cambrian age ; that in Pine hill it overlies conformably a massive 

 quartzite, with associated beds of metamorphic conglomerate, cement rock, 

 crystalline limestone, and gneiss, which bend around to join the similar 

 series lying east of the limestone ; and that the Pine hill quartzite must there- 

 fore be of Olenellus age, while the limestone, bounded on the east and west 



