TITLES OF PAPERS. 597 



The second paper was : 



PALEOZOIC OVERLAPS IX MONTGOMERY AND PULASKI COUNTIES, VIRGINIA 



BY M. R. CAMPBELL 



This paper is printed as pages 171-190 of this volume. 

 The following paper was read : 



GEOLOGIC RELATIONS FROM GREEN POND, NEW JERSEY, TO SKUNNEMUNK 



MOUNTAIN, NEW YORK 



]}Y N. H. BARTON 



Remarks were made b}" J. E. Wolff. Tliis ])aper is printed as pages 

 367-394 of this volume. 



The next paper presented was : 



ANCIENT ERUPTIVE ROCKS IN THE WHITE MOUNTAINS 

 BY C. II. HITCHCOCK 



The paper was discussed by J. P. Iddings and N. S. Shaler. An ab- 

 stract is i)ublished in The American Geologist, volume xiii, March, 1894, 

 page 213. 



The following j)aper was then read : • « 



ANCIENT VOLCANIC ROCKS ALONG THE EASTERN BORDER OF NORTH AMERICA 



BY GEORGE II. WIIJ.IAMS 



This paper was discussed at length by A. C. Lane, J. P. Iddings, Whit- 

 man Cross, J. S. Diller and the author. It is published in full in The 

 Journal of Geology, volume ii, 1891, pp. 1-34. 



The following paper was read by the author, but not presented for 

 publication : 



THE CHEMICAL EQUIVALENCE OF CRYSTALLINE AND SEDIMENTARY ROCKS 



BY Ci. K. GILBERT 

 LXXXIII -Rui.i. Gfoi.. Sor. Am., Vor.. r>, 1893. 



