42 DONS. — 7 NOVEMBRE 1887 AU 16 JANVIER 1888 



Pearce. — Notes on a new occurrence of Copper arsenates and associated mi- 

 nerais in Utah, 134. 



Penfield. -— Phenacite from Colorado, l4l. 



Chisolm. — ïhe elk head anthracite coal-field of Rout county, 147. 



Richard Pearce. — Additiona) notes on Copper arsenates, and associated mine- 

 rais, from Utah, 150. 



New-Haven. The American Journal of science. S""" série, t. XXXIV, 

 n°^ 203, -204, pi. II-X, 1887. 



Dana. — History of the changes in the Mt-Loa craters, 349. 



Irwing. — Is there a Hnronian group ? 367. 



Fischer. — Description of an Iron météorite from Saint-Croix County, Wis- 

 consin, 381. 



Whitfield. — The Rockwood météorite, 387. 



Marsh. — Appendix-American Jurassic Dinosaurs. ïheskuU and dermal arraor 

 of Stegosaurus, 413. 



Gilbert. — Work of the international Congress of Geologists, 451, 



Kunz. — American météorites, 467, 



— Mineralogical notes, 477. 



T. XXXV, n° 205. pi. I. 



Newcomb et Dutton. — Speed of propagation of the Charleston earthquake, l. 

 Dana. — History of the change in the Mt-Loa craters, 15. 

 Williams. —Différent types of the Devonian system in north America, 51. 

 Marsh. — Notice of a new genus of Sauropoda and other new Dinosaurs from. 

 the Potomac formation, 89. 

 — ■ Notice on a new fossil Sirenianfrom Califoraia, 97. 



New- York. — Transactions of the — . Academy of Sciences, 

 vol. IV, 1884-85. 



Washington. — The United States geologicalSurvey, p. 377-490. 



— Department of Interior. Report on the mining Industries of 

 the United States with spécial investigations into the iron resources 

 of the republic, and into the cretaceous coals of the northwest, by 

 Raphaël Pumphelly ( Don de M. E. de Margerie). 



Grande-Bretagne. — Cambridge. — Proceedings of the — 

 philosophical Society. 1887, t. VI, 2^ partie. 

 Marr. -^ On Homotaxis, 74. 



Edinburgh. — Catalogue of the library of the — geological 

 Society, 1887, 



Transactions of the — geological Society, t. V, 3^ partie, 1887. 



John Henderson. — On sands Gravels at Musselburgh and Stockbridge 

 (pi. X), 350. 



Tait Kinnear. — On the genus Fenestella, 355. 



James Thomson. — On the genus LithostroHon, 37i, pi. XI-XIII. 



Johnstone. — On the évolution and classification of igneous rocks, 412. 



Claypole. — On, the lake Age in Ohio, pi. XVI-XIX, 421. 



M' Diarmid. — On granité a,nd porphyry or felstone, 459. 



