Monthly Author's Catalogue. 255 
SPENCER, A. C. 
Pre-Cambrian rocks of the Franklin Furnace quadrangle. (Sci- 
ence, vol. 21, p. 391, Mar. 10, 1905.) 
STORRS, ARTHUR H. 
The Anthracite Coal Fields of Pennsylvania. (Mining Mag., 
vol. 11, March, 1905.) 
TARR, R. S. 
Some drainage features of southern central New York. (Am. 
Geol., vol. 35, p. 52, Jan., 1905.) 
TASSIN, WIRT. 
The Mount Vernon Meteorite. (Proc. U. S. Nat. Mus., vol. 28, 
pp. 213-217, Pis. 3-4, 1905.) 
VEATCH, A. C. 
The question of the origin of the natural mounds of Louisiana. 
(Science, vol. 21, p. 350, Mar. 3, 1905.) 
WARD, H. A. 
Billings meteorite; a new iron meteorite from southern Mis- 
souri. (Am. Jour. Sci., vol. 19, pp. 240-242, March, 1905.) 
WEED, WALTER H. 
Adsorption in Ore Deposition. (Eng. «S; Mining Jour., vol. 79, 
p. 304, Feb., 1905.) 
WEIDMAN, S, 
Iron ores of Wisconsin, with special reference to the Baraboo 
district. (Wisconsin Engineer, vol. 9, pp. 31-44, 1905.) 
WHITE, C. H. 
Autophytography: A process of plant fossilization. (Am. Jour. 
Sci., vol. 19, pp. 231-237, March, 1905.) 
WILLARD, D. E...(See HALL, CHAS. M.) 
WILLEY, D. A. 
Modern methods of gold prospecting and mining. (Sci. Am., 
vol. 92, p. 181, Mar. 4, 1905.) 
WILLEY, D. A. 
Rocky Mountain avalanches. (Sci. Am., vol. 92, p. 164, Feb., 
25, 1905.) 
WILLIAMS, H. S. (and EDW. M. KINDLE). 
Contributions to Devonian Paleontologv, 1903, U. S. G. S., Bull. 
244, pp. 144, pis. 1-4, 1905. 
WILLIS, BAILEY. 
Mountain Growth and Mountain Structure. (Am. Geol., vol. 
35, p. 52, Jan., 1905.) 
WILLIAMS, IRA A. 
The comparative accuracy of the methods of determining the 
percentages of the several components of an igneous rock. (Am. 
Geol., vol. 35, pp. 34-46, Jan., 1905.) 
WOODBRIDGE, DWIGHT E. 
The Mesabi Iron Ore Range VI. VII. (Eng. & Mining Jour.,, 
vol. 79, Feb. and Mar., 1905.) 
