DONS. — 2 MARS-4 MAI 1885. 
61 
léontologie ainsi que des cartes géologiques qui se trouvent dans les 
principales bibliothèques de Belgique, par G. Dewalque. 1 vol., 
394 p., in-8% Liège 1884. 
Canada. — Toronto. Proceedings of the Ganadian Institute 
Toronto, 3^ série, t. III, fasc. I, mars 1885. 
Nelson Dale. — On metamorphism in the Rhode-Island Coal Basin, 18. 
Espagne. — Madrid. Anales de la Sociedad espanola de Historia 
Natural, t. XIV, n« 1. 
Quiroga. — ■ Limburgita de Nuévalos fZaragoza), 75. 
Quiroga. — Noticias petrograficas (2'" parte), 95. 
Brenosa. — Estudios micro-mineralôgicos. — El dimorfismo del bisilicato de 
cal., 115, 1 pl. 
États-Unis. — Boston. Society of natural History, Proceedings 
of the —, t. XXII, n« 2 (nov. 1882-février 1883). 
Wadsworth. — The Argillite and Conglomerate of the Boston Basin, 130. 
Alexis-A. Julien. — The Dunyte Beds of North Garolina, 141. 
Nelson Dale. — A contribution to the Geology of Rhode Island, 3 pl., 179. 
Wadsworth. — • Some instances of atmospheric Action on Sandstone, 201. 
N° 3 (mars-octobre 1883). 
Garman. — Remarks on the extinction of the fossil horses of America. 
Hyatt. Gênera of fossils Cephalopods, 253. 
Davis. Remarks on the geology of Becrafts' Mountain on Hudson, 339. 
Memoirs of the. — 
T. III, n°8, n«9. 
Scudder. — Two new ad diverse types of Carboniferous Myriapod the species of 
Mylacris, a Carboniferous Genus of Cockroaches. 
Gambridge Mass. — Science, t. V. n®^ 107-115. 
A new geological map of Canada with an outline sketch, 156. 
The coal question in England, 175. 
George H. Williams. — The microscope in geology, 190. 
Rockwood. — The Spanish earthquakes, 191. 
Rockwood. — The Sierra Nevada of Spain : the scène of the récent earth- 
quakes, 195. 
Davis. — The Work of the Swiss earthquake commission, 196. 
Fouqué. — The causes of earthquaques, 198. 
Paul. — Seismological notes, 199. 
Merill. — Supposed crude jade from Alaska, 209. 
James. — Evidences of beaches in the Cincinnati group, 231. 
Symonds. — Mammalia in interglacial deposits, 248. 
Peale. — Devonian strata in Montana, 249. 
The toi)ography and geology of the Hudson-Bay région, 256. 
Engineering geology, 260. 
