— 364 — 



Semmons: Note on a „Enargite" from Montana, U. S. A. 49. — Trece- 

 mann: Analysis of an a altered Siderite, from Helton Beacon Lead Mine, 

 near Appleby. 52. — Bonney: Notes on a Picrite (Palaeopicrite) and other 

 Rocks from Gripps' Land, and a Serpentine from Tasmania. 54. 



7) *The American Journal of Science. 3rd Series. [Jb. 1885. 

 I. -165-] 



Vol. XXVIII. No. 167. November 1884. — Wm. P. Blake : Colnmbite 

 in the Black Hills of Dakota. 340. — Eoss E. Browne: Criticism of 

 Becker's Theory of Faulting. 348. — James D. Dana : Note on the Cort- 

 landt and Stony Point Hornblendic and Augitic rocks. 384. 



No. 168. December 1884. — W. M. Davis: Distribution and origin 

 of Drnmlins. 407. — J. P. Kimball : Geological Relations and Genesis of 

 the Specular Iron Ores of Santiago de Cuba. 416. — C. A. Schaeffer: 

 A riew Tantalite Locality. 430. — C. D. Walcott: Palaeozoic Rocks of 

 Central Texas. 431. — A. C. Baines : Sufficiency of Terrestrial Rotation 

 for the Deflection of Streams. 434. — 0. A. Derby: Peculiar Modes of 

 Occurrence of Gold in Brazil. 440. — A. W. Jackson : Colemanite, a new 

 Borate of Linie. 447. — J. D. Dana: Decay of Quartzyte, and the for- 

 mation of sand, kaolin and crystallized quartz. 448. 



8) Bulletin o f the Museum o f Comparative Z o o 1 o g y , a t 

 Harvard College, Cambridge. [Jb. 1883. I. -544-] 



Whole series. vol. VII (Geological series. vol. I). — M. E. Wads- 

 worth : Notes on the geology of Iron and Copper districts of Lake Supe- 

 rior (6 pl.). 1. — *J. S. Diller: The Feisites and their associated rocks 

 north of Boston. 165. — *M. E. Wadsworth: On an occurrence of Gold 

 in Maine. 181; — *A microscopical study of the Iron Ore, on Peridotite 

 of Iron Mine Hill, Cumberland, Rhode Island. 183. — *C. E. Hamlin: 

 Observations upon the Physical Geography and Geology of Mount Ktaadn 

 (2 pl.). 189. — *Leo Lesquereux: Report on the recent additions of 

 fossil Plants to the Museum Collections. 225. — *John Elliot Wolff: 

 The Great Dike at Hough's Neck, Quincy, Mass. 231. — *Leo Lesque- 

 reux: On some specimens of Permian Fossil Plants from Colorado. 243. 

 William Morris Davis : On the relations of the Triassic Traps and Sand- 

 stones of the Eastem United States (3 pl.). 279; — The folded Helder- 

 berg Limestones, East of Catskills (2 pl.). 311. — *J. D. Whitney and 

 M. E. Wadsworth: The azoic System and its proposed subdivisions. 331. 



9) *Proceedings of theAcademyof Natural Sciences of 

 Philadelphia. 8°. Philadelphia. [Jb. 1884. II. -452-] 



1884. Part II. May— Oct. — Eugene N. S. Ringueberg: New Fos- 

 sils from the four Groups of the Niagara Period of Western New York 

 (pl. II u. III). 144. — H. Carvill Lewis : Volcanic Dust from Krakatoa. 

 185. — Jos. Willcot : Notes on the Geology and Natural History of the 

 West Coast of Florida. 188. — A. E. Foote : A large Zircon. 214. — 

 D. G. Brinton: Tunisian Flints. 219. — Frederick D. Chester: Pre- 



