74 DONS. — DU 28 AVRIL AU 16 JUIN 1890 



— Bulletin of the American Muséum of Natural History. 

 Vol. II, no 3, Dec. 1889, n» 4, Fév. 1890. 



Philadelphie. — Transactions of the American Philosophical 

 Society. 

 Vol. XVI, N. S. Part. III, 1890. 



John C. Branner : The Cretaceoiis and Tertiary Geology of the Sergipe Alagôas 

 Basin of Brazil, p. 369-434, 5 pi. — George B. Simpson : Descriptions of New Species 

 of Fossils froni the Clinton, Lower Helderberg, Chemung, and Waverly Groups, 

 found in the Collections of the Geological Survey of Pennsylvania, p. 435-460. — 

 William B. Scott a. H. Fairfield Osborn : The Mammalia of the Uinta Formation, 

 p. 461-572, pi. VII-XI. 



— Proceedings of the Academy of Natural Sciences of Phila- 

 delphia, 1889, III, oct.-déc' 



Gh. R. Keyes : Sphaerodoma, a genus of fossil Gasteropods (suite), p. 305-309. — 

 Abraham Meyer : Notes on the presence'of Umbral or Mountain Limestone in Lyco- 

 ming G", Penna, p. 310.— Th. D. Rand : Notes on. the drift on Rlock Island, p. 408-411. 



Sacramento. — California State Mining Bureau. 9*'! annual 

 Report of the State Mineralogist for the yearending dec. 1889. 1890. 



Saint-Paul. — The Geological and Natural History Survey of 

 Minnesota. 17*^ annual Report. N. H. Winchell, 1889. 273 p. 



— Bulletin, n^ 1. 



N. H. Winchell : The History of Geological Surveys in Minnesota, 37 p. no 5. — 

 N. H. Winchell : Natural Gas in Minnesota, 39 p. 



Washington. — Memoirs of the National Academy of Sciences. 

 Vol. IV, 2e partie. 



— Smithsonian Contributions to Knowledge. 

 Vol. XXVI, no 673. 



Alpheus Hyatt : Genesis of the Arietidae, 50p., 6 tableaux, 14 pi. 



Grande-Bretagne. — Londres. — Proceedings of the Royal 

 Society. 

 - Vol. XLVII, no 288. 



— The Quarterly Journal of the Geological Society. 

 Vol. XLVI, 2, no 182. Mai 1890. 



W. T. Blanford : The Permanence of Ocean-Basins, p. 59-110. — J. Prestwich : 

 On the Relation of the Westleton Beds, or Pebby Sands of Sufïolk, to those of 

 Norfolk, and on their Extension Inland ; and on the Period of the Final Elévation 

 and Denudation of the Weald and of the Thames Valley, p. 120-181, pi. VII-VIII. 

 — R. Lydekker ; On remains of small Saurapodous Dinosaurs from the Wealden, 

 p. 182-184, pi. IX. — Id. : On a Horn-like Dinosaurian Bone from the Wealden. 

 p. 185-186. — T. G. Bonney : On the Cristalline Schists and their Relation to the 



