IV BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA. 



Page 



Memoir of Henry B. Nason ; by T. C. Chambeulin 479 



Memoir of Albert E. Foote [with bibliography] ; by George F. 



KuNZ 481 



Memoir of Antonio del Castillo [with bibliography]; by Ezequiel 



Okdonez 48G 



Illustrations of the dynamic metaniorphism of anorthosites and re- 

 lated rocks in the Adirondacks [abstract] ; by J, F. Ke.mp 488 



The share of volcanic dust and pumice in marine deposits [abstract] ; 



by N. S. Shalek 490 



A needed term in petrography [abstract] ; by L. V. Piksson 492 



Session of Friday, December 27 493 



Sixth annual report of committee on photographs 494 



Examples of stream-robbing in the Catskill mountains [abstract]; 



by N. H. Darton 505 



Notes on glaciers [abstract] ; by H. F. Rkid 508 



Session of Saturday, December 28 509 



Paleozoic terranes in the Connecticut valley [abstract] ; by C. H. 



Hitchcock 510 



Notes on relations of lower members of the Coastal l*lain series in 



South Carolina ; by N. H. Dartox 512 



Some stages of Apj^alachian erosion ; by Arthur Keith 519 



The Cerrillos coal field of New ^Mexico [abstract] ; by J, J. Stevenson. 525 



Register of the Philadel[)hia meeting ...'.. 528 



Oflicers and Fellows of the Geological Society of America '. . 529 



Accessions to the library, from January, 1895, to March, 189G 539 



Index to volume 7 549 



ILLUSTRATIONS 

 Plates 



r 



Plate 1 — Dawson: Boulder-clays and Saskatchewan gravels (2 iigures) 49 



Paleozoic echini (7 figures) 247 



" (10 figures;) 248 



" " (2 figures) 249 



•' " (5 figures) 250 



'• (11 figures) 251 



" " (7 figures) 252 



•* " (G figures) 253 



" (7 figures) 254 



Entrance to the bay of Rio de Janeiro 2G9 



Exfoliating gneiss at Copocabana beach, Rio de Janeiro. . 272 



The Gavea 273 



Boulders of decomposition on Paqueta island, bay of Rio 



de Janeiro 277 



Boulders of decomposition near Rio de Janeiro 278 



The Cuyahoga delta and glacial lake beaches in Cleveland, 



Ohio 327 



16 — Merrill : The great dike in Medford, Massachusetts 349 



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-Jackson : 



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