6o The American Geologist. J^"^'^^"^'' ^^*^"' 
BROWN, R. M. 
Clays of the Boston basin. (Am. Jour. Sci. vol. 14, Dec. 1902. 
pp. 44 5-4.50.) 
CALVIN, S. 
Concrete examples from the topography of Howard county, Iowa. 
(Am. Geol.', vol. 30. pp. 375-381.) 
COLEMAN/ A. P. 
Rock basins of Helen mine. Miehipicoten, Canada. (Bull. G. S. 
A., %^ol. 13. pp. 293-304, Oct., 1902.) 
CONDRA, G. E. 
New Bryozoa from the Coal Measures of Nebraska. (Am. Geol., 
vol. 30. pp. 337-358, Dec. 1902.) 
DALL, W. H. 
The Grand Gulf formation. (Sci. vol. 16, Dec. 12, 1902. p. 946.) 
EMERSON, J. S. 
Some characteristics of Kau. (Am. Jour. Sci., vol. 14, Dec. 1902. 
pp. 431-439.) 
FIN LAY, GEO. I. 
Icneous rocks of the Algonkian series. (Bull. G. S. A., vol. 13. pp. 
349-352.) 
FISHER, C. A. (E. H. BARBOUR AND). 
New form of calcite-sand crystals. (Am. Jour. Sci., vol. 14. Dec. 
1902. pp. 451-454.) 
FOERSTE, A. F. 
The Cincinnati anticline in southern Kentucky. (Am. Geol., vol. 
30. Dec. 1902, pp. 359-369.) 
FORD, W. E. 
Chemical composition of dumortierite. (Am. Jour. Sci., vol. 14, 
Dec. 1902, pp. 426-430.) 
FULLER, M. L. 
The Gaines oil field. (U. S. G. S., 22 Am. Rep., 1900-1901, Part 3, 
pp. 579-627, Washington, 1902.) 
GRABAU, A. W. 
Studies of Gastropoda. (Am. Nat., vol. 36, Dec. 1902, pp. 917-945.) 
GILMORE, C. W. 
Discovery of teeth in Baptanodon, an ichthyosaurian from the 
Jurasic of Wyoming. (Science, vol. 16, Dec. 5, 1902.) 
HAY, O. P. 
Description of a new species of Cladodus (C. formosus) from the 
Devonian of Colorado. (Am. Geol., vol. 30. pp. 373-374, Dec. 1902.) 
HAYDEN, H. E. 
Anthracite coal in Wyoming valley. (Proc. Wyo. Hist, and Geol. 
Soc, vol. 7, 1901, p. 29. Wilkesbarre, 1902.) 
HOBBS, W. H. 
Instance of the action of the ice-sheet upon slender projecting 
rock masses. (Am. Jour. Sci., vol. 14, Dec. 1902, pp. 399-404.) 
