DONS. — DU 3 FÉVRIER AU 28 AVRIL 18D0 59 



Province of Québec, p. 101-115, — F. A. Geutli et S. H. Penfield : Lansfordite, Nesque- 

 honite, a uew Minerai, and Pseudomorphs of Nesquehonite after Lansfordite, 121- 

 137. — Selwyn : Tracks of organic origin in rocks of the Animikie group, p. 143-147. 

 — James 0, Dana; Sedgwick and Murchison : Cambrian and Silurian, p. 167-180. — 

 G. M. Dawson : Cretaceous of the British Columbian Région. The Nanaimo Group, 

 p. 180-183. — G. H. Williams : Celestite from Minerai County, West Virginia, p. 183- 

 188. — G. J Brush et E. S. Dana : Minerai Locality at Branchville Connecticut : .^"' 

 paper, p. 201-216. — Frank Cramer: Récent Rock-Flexure, p. 220-225. — E. Orton : 

 Origin of the Rock Pressure of the Naturale Gas of the Trenton Limestone of Ohio 

 and Indiana,p. 223-229. — .1. G. Bx-anner: Aeolian sandstones of Fernando de Noronho, 

 p. 247-238. — N. H. Darton : Occurrence of Basait Dikes in the Upper Paleozoic séries 

 in central Appalachian Virginia, p. 269-271. — W. F. Hillebrand et E. S. Dana : Addi- 

 tional Notes on the Tyrolite of Utah, p. 271-273. — W. S. Bayley : Origin of the 

 Soda-Granite and Quartz-Keratophyre of Pigeon Point, p. 273-280. — J. B. Mackin- 

 tosh : Occurrence of Polycrase, or of an allied species, in both North and South Caro- 

 lina, p. 302-306. — R. S. Tarr : Origin of some Topographie Features of Central 

 Texas, p. 306-311. 



Nevi^-York. — Transactions of the New- York Academy of 

 Sciences. Vol. VIII, 1888-89, nos 5.8. 



Alph. Hyatt : Modes of Evolution in Fossil Shells, p. 114-115. — John H. Furman : 

 The Tin-deposits of Nortli-Carolina, p. 136-151, 2 pi. — G. F. Kunz : American 

 Ambers, with other Mineralogical Notes, p. 158-160. — ^ Id. : The Precious and 

 Ornamental Stones of North America (collection prepared for the Paris Exposition), 

 p. 160-163. — N. L. Brisson : Remarks on récent discoveries in local cretaceous and 

 quaternary Geoiogy, p. 177-181. — W. E. Hidden: Yttrium Minerais from Llano Co. 

 Texas, p. 185. — A R. Ledoux : The Pipebreek Météorite, p. 186-187. 



■ Philadelpliie. — Proceedings of the American Philosophical 

 Society. 

 Vol. XXVI. J.-déc. 1889, n» 130. 



E. D. Cope : A. Review of the North American Species of Hippotherium, p. 429- 

 438, 3 pi. — Id. : An Outline of the Philosophy of Evolution, p. 495-505. 



— Proceedings of the Academy of Natural Sciences of Phila- 

 delphia. Part II. May-September. 1889. 



J. T. Rothrock : The Sand-Dunes of Lewes, Del. p. 134-135. — E. Goldsmith : 

 Gadolinite from Llano Co., Texas, p. 164-165. — J. M. Safïord a. A. W. Vogdes : 

 Description of new species of fossil Crustacea from the Lower Silurian of Tennessee, 

 p. 166-168. — G. A. Koenig : Chloanthite, Nicolite, De Saulesite. Annabergite, 

 Tephrovsillemite and Aquatite from Franklin, N. J., p. 184-188. — W. B. Scott : 

 Notes on the osteology and systematic position of Dinictis felina, Leidy, p. 211-244. 

 Gh. R. Keyes : Lower Carbonic Gasteropoda from Burlington, fowa, p. 284-298. — 

 Id. : The American Species of Polyphemopsis, p. 299-302. — Id. : Sphaerodoma : 

 a genus of fossil Gasteropoda, p. 303-304. 



— Transactions of the Wagner Free Institute of Science of Phila- 

 delphia. Vol. II. Dec. 1889, 10 pi. 



