DONS. — SÉANCES DES 2 ET 16 MAI 1898 31 



368. — J. Hans : A quoi peut servir une Société de géologie dans le domaine des 

 applications pratiques, 40 p. — J. Lambert : Note sur les Echinides de la craie de 

 Ciply (suite). — 0. Lang : De la formation des cavernes, p. 191-220. — A. Renard : 

 La géographie dans l'enseignement supérieur en Belgique, p. 221-250. — X. Stainier : 

 De la formation des cavernes, p. 251-272. — J.-C. van Mierlo : Marées quaternaires 

 sur les côtes de Belgique, p. 273-283. — C.-E. Bertrand : Conférences sur les char- 

 bons de terre, p. 284-310. 



Espagne. — Madrid. Act. Soc, Esp. de H. N. Avril 1898. 

 États-Unis. — Baltimore. Maryland Geol. Surv. I, 1897. 



1. Bullock Clark : Introduction, p. 21-42. — 2. Historical Sketch, p. 43-138. — 



3. Outline of Présent Knowledge of the Physical Features of Maryland, p. 139-228. 



— 4. Edward Mathews : Bibliography and Cartography of Maryland, p. 229-332. — 



4. A. Bauer : First Report upon Magnetic Work in Maryland, p. 403-530, 17 pi. 



Chicago. The John Creerar Library 4 Ann. Rep. for 1897. 

 Granville. Denison University Se. Laboratories. Bull. IX, 2. 



Fr. Leverett : Changes in Drainage in S. Ohio, p. 18-21. — W.-G. Tight : Some 

 Preglacial Drainage Features of S. Ohio, p. 22-32. — A Preglacial valley in Fairfield 

 County, p. 33-37 (PI. D-F, 4). 



Halifax. Nova Scotian Inst. of Se. Proc. andTrans. IX, 3, 1896-97. 



E. Gilpin : On some Analyses of Nova Scotia Coals and others Minerais, p. 246-255. 



Minneapolis. The Amer. Geologist. XXI, 2-3, Févr.-Mars 1898. 



R. Ruedemann : Additional Note on the Oceanic currente in the Utica Epoch, 

 p. 75-S1 (pi. 9). — Warren Upham : Shell-Bearing Drift on Moel Tryfan, p. 81-86. 



— C.-F. Marbut : Cote Sans Dessein and Grand Tower, p. 86-90 (pi. 10). — A. -H. 

 Elftman: The Geology of the Keweenawan Area in N. E. Minnesota, p. 90-110 (pi. 11). 



— J.-W. Spencer : An Account of the Researches relating to the Great Lakes, p. 110- 

 123. — Ch.-P. Berkey : Geology of the St-Crôix Dalles II, p. 139-155 (pi. 12-13). — 

 J.-P. Kimball : Residual Concentration by weathering as a Mode of Genesis on lron 

 Ores, p. 155-164. — W. P. Blake : Oscillations of Level of the Pacific Coast of the 

 United States, p. 164-165. — Warren Upham : Valley Moraines and Drumlins in 

 the English Lake District, p. 165-170. — M.-E. Wodsworth : Some Methods of Deter- 

 mining the Positive ar Négative Character of Minerai plates in converging Polarized 

 Light with the Petrographical Microscope, p. 170-175. — A. -H. Elftman : The Geo- 

 logy of the Keweenawan Area in N. E. Minnesota II, p. 175-188. 



New-Haven. The Amer. Journ. of Se. VI, 29, Mai 1898. 



T.-A. Jaggar : Some conditions affecting Geyser Eruption, p. 323-334. — G. -F. 

 Becker : Détermination of Plagioclase Feldspars in Rock Sections, p. 349-355 (pi. 3). 



— F.-L. Ransome : Some Lava Flows of the W. Slope of the Sierra Nevada, Cali- 

 fornia, p. 355-375. — A. -H. Chester : Crennerite from Cripple Creek Colorado, p. 375- 

 378. — W.-C. Knight : Some Jurassic Vertebrates from Wyoming, p. 378-382. 



Neiv-York. Am. Muséum of N. H. Bull. X, 1897. 



R.-P. Whitfield : On the Hypostome of Lichas (Teraspis) Grandis Hall, p. 45-46 

 (3 fig.). — Descriptions of New Species of Silurian Fossils from ncar Fort Cas^in 

 and elsewhere on Lake Champlain, p. 177-184 (pi. 4-5). — Descriptions of Species of 



