Monthly Author's Catalogue. 323 
SPENCER, J. W. 
Di- Nansen's Bathymetrical Features of the North Polar Sea with 
a Discussion of the Continental Shelves and the Previous Oscilla- 
tions of the Shore-line. (Am. Geol., Vol. 35, pp. 221-236, April, 1905.) 
TARR, R. S. 
Some Instances of Moderate Glacial Erosion. (Jour. Geol., Feb.- 
Mar., 1905., p. 160.) 
UPHAM, WARREN 
Groseilliers and Radisson, and their Discovery of the Upper Mis- 
sissippi River. (Minn. Hist. Soc. Colls., Vol. 10, pp. 449-594, Map, 
Feb., 1905.) 
UPHAM, WARREN 
The Nebular and Planetesimal Theories of the Earth's Origin. 
(Am. Geol., Vol. 35, pp. 312-321, April, 1905.) 
VAN HISE, C. R. 
Report of the Special Committee on the Lake Superior Region, 
with Introductory Note. (Jour. Geol., Feb.-Mar., 1905, p. 89.) 
VEATCH, A. C. 
General Geology and Water Horizons of Louisiana and Southern 
Arkansas. (U. S. G. S., Wat. Sup. Ir. Pap., 114, pp. 179-187, 1905.) 
WEAVER, CHARLES E. 
Contribution to the Paleontology of the Martinez Group. (Bull. 
Dept. Geol.. Univ. Cal,, Vol. 4, pp. 101-123, Pis. 12-13, Feb., 1905.) 
WEEKS, F. B. 
New York Physiography, Geology, and Underground Water. (U. 
S. G. S., Wat. Sup. Ir. Pap., 114, pp. 82-93, 1905.) 
WEIDMAN, S. 
Iron Ores of Wisconsin. (Eng. Min. Jour., Vol 79, p. 610, Mar. 30, 
1905.) 
WHITE, DAVID 
Fossil Plants of the Group Cycadofilices. (Smithsonian Miscel- 
laneous Collections, Vol. 47, p. 378, 1905.) 
WILDER, F. A. 
The Lignite of North Dakota. (U. S. G. S., Water Supply and 
Irrigation Paper, No. 117, pp. 55, PI. 8, 1905.) 
WILLIAMS, H. S. 
Bearing of Some New Paleontologic Facts on Nomenclature and 
Classification of Sedimentary Formations. (Bull. G. S. A., Vol. 16, 
pp. 137-150, March, 1905.) 
WILLEY, DAY ALLEN 
The Vesuvius of America. (Sci. American, Vol. 92, p. 321, April 22. 
1905.) 
