﻿640 



A. G. Nathorst: neue Fundorte für arktische Pflanzenreste in Schonen. 

 (Nya fyndorter för arktiska växtlemningar i Skaane): 293—319. 



14) The American Journal of Science and Arts by B. Silliman 



and J. D. Dana. New Häven. 8°. [Jb. 1877, p. 522.] 

 1877, April, vol. XIII, No. 76, p. 247—326. 

 Ch. Wachsmuth a. Frank Springer : Revision of the genus Belemnocrinus, 



and description of two new species: 253. 

 J. S. Diller: Westneid during the Champlain Period: 262. 

 S. W. Ford: on some Embryonic Forms of Trilobites froin the Primordial 



Rocks at Troy: 265. 1 PI. 

 J. H. Coffin: the Winds of the Globe; or the Laws of Atmospheric Cir- 



culation over the surface of the Earth: 273. 

 F. W. Clarke: Note on Mineral Analysis: 290. 



A. H. Chester: on the identity of the so-called Peganite of Arkansas 

 with the Variscite of Breithaupt and Callainite of Damour: 295; on 

 a fibrous variety of Sepiolite from Utah: 296. 



J. J. Stevenson: on Dr. Peale's Notes on the Age of the Rocky Moun- 

 tains in Colorado: 297. 



R. Irving: Note on the Age of the Crystalline Rocks of Wisconsin: 307^ 



J. D. Dana: Microscopical Petrography, by F. Zirkel: 309. 



C. H. Hitchcock: Note upon the Connecticut Valley Helderberg: 313. 



1877, May, vol. XIII. No. 77; p. 327—404. 

 J. D. Dana: an account of the Discoveries in Vermont Geology of the 



Rev. Aug. Wing: 322. 

 J. Lawrence Smith : Examination of American Minerals. No. 6. Columbit, 



Samarskit, Euxenit, Fergusonit, Hatchettolith a. Rogersit: 359. 

 Delafontaine : on the Hermannolith Shep. and the Samarskit of North 



Carolina: 390. 



