510 PROCEEDINGS OF PHILADELPHIA MEETING. 



The fourth paper was read by the Secretary : 



FOUR GREAT KA.ME AREAS OF WESTERX NEW YORK 

 BY H. L. FAIRCHILD 



The paper is published in the Journal of Geology, volume iv, Feb- 

 ruary-March, 1896, pages 129-159. 



The next paper was read by title : 



PREGLACIAL AND POSTGLACIAL VALLEYS OF THE CUYAHOGA AND ROCKY 



RIVERS 



BY WARREN UPMAM 



The paper is printed as pages 327-318 of this volume. 

 The following paper was then read : 



PALEOZOIC TERRANES IN THE CONNECTICUT VALLEY 

 BY C. IT. TTITCriCOCK 



lAbstracQ 

 Contents 



Page 



Introduction 510 



Revision of the arrangement of the argillites 510 



Hornblende-schist 511 



Protege ne 511 



Paleontology 511 



Correlation 512 



lN'ri{OI)U(TIC)N 



Since the terininatiou of the geological survey of New Hampshire in 1878 the 

 author has incidentally investigated the structure of the Connecticut Valley terranes 

 and desires to place on record a few important conclusions.' 



Revision of the Arrangement of the Aiuhlutes 



It is believed that one band underlies and the other overlies the calciferous mica- 

 schist. The lowest one has not been traced farther south than Barnard and Hart- 

 land, Vermont, localities which represent two outcrops of the same terrane, twenty- 

 five miles or more apart, but dipping toward each other. The more western range 

 carries the North field quarries, and with an interruption in the La Moille valley 

 passes into Canada along lake Memphremagog. Quarries have been wrought in the 

 eastern band at North Thetford and Kirby, Vermont. Both ranges rest upon 

 hydromica-schist and underlie the calciferous mica-schist. 



The newer terrane embraces the rest of the "Cambrian slate" of my report, 

 to'3-ether with the staurolitic and garnetiferous slates called CoiJs. The two were 



