DONS. — SÉANCE DU 3 NOVEMBRE J 891 
111 
Bulletin pour 1890, n° 3. 1891, n° 1. 
Mémoires. Classes des Sciences. Vol. VI, u° 2. 
Espagne. — Madrid. — Memorias de la Comision del Mapa 
geologico de Espana. 
D. Petro Palacios : Description fisica, geologica y agrologica de la provincia de 
Soria. 1 vol. gr. in-8°, 558 p., 6 pl. 
Etats-Unis. — Boston. — Proceedings o£ the American Academy 
of Arts and Sciences. N. S. Vol. XVII (XXV), 1889-1890. 
O. W. Huntington : A new meteoric iron from Stutsman County, North Dakota, 
p. 229-232. 
Cambridge. — Bulletin of the Muséum of Comparative Zoology 
at Harvard College. 
Vol. XVI, n° 10. 
J. E. Wolfï : Metamorphism of clastie feldspar in conglomerate schist, p. 173-184, 
2 pl. 
Vol. XXI, n os 3-5. 
Houghton, Michigan. — Catalogue of the Michigan Mining School. 
1890-91. 
Minneapolis. — The Geological and Natural History Survey of 
Minnesota. 
The 18 th Annual Beport, for the year 1889. 
N. H. Winchell : Report of Field Observations, p. 7-64. — A. Winchell: American 
opinion on the older rocks, p. 65-225. 
Bulletin n° 6, 1891. 
N. II. Winchell a. H. V. Winchell : The Iron Ores of Minnesota, 430p.,l carte, 44 pl. 
— The American Geologist. In-8°. 
Vol. I-VII. 
Vol. VIII, n os 1, 3, 4, 1891. 
T. Nelson Dale : The Greylock Synclinorium, p. l-7_ — A. Lakes : The fuel resour- 
ces of Colorado, p. 7-19. — J. B. Tyrrell : Pleistocene of the Winnipeg Basin, 
p. 19-28. — F. W. Cragin : On a leaf-bearing terrane in the Loup-Fork, p. 29-32. — 
G. C. Broadhead : The Ozark Sériés, p. 33-35. — R. R. Gurley : Some recent grapto- 
litic literature, p. 35-43. — Stephen D. PeeL : The Floot-Plain and the Mound Buil- 
ders, p. 44-51. — R. T. Hill : Preliminary notes on the topograplxy and geology of 
Northern Mexico and Southwest Texas, and New Mexico, p. 133-141.— S. Calvin : 
Additional notes on the Devonian rocks of Buchanan County, Jowa, p. 142-145. — 
Warren Upliam : The ice-sheet of Greenland, p. 145-152.— E. W.Claypole : An 
épisode in the palaeozoic history of Pennsylvania, p. 152-159. — .1. Crawford : Neoli- 
thic man in Nicaragua, p. 160-166. — Fr. L. Nason : The post-archaean âge of the 
