Authors' Caialogue. 131 
Iddings, J. P., (andW. H. Weed.) 
Descriptive geology of the Gallatin mountains. (Mon. 32, Part 2, 
U. S. Geol. Sur., pp. 1-59, pis. i-io, 1899.) 
iddings, J. P. 
The dissected volcano of Crandali basin, Wyoming. (Mon. 32, 
Part 2, U. S. G. S., pp. 215-268, pis. 27-45.) 
Iddings, J. P. 
The Rhyolites [of the Yellowstone National Park.] (Mon. 32, Part 2, 
U. S. G. S., pp. 356-432, pis. 39-58, 1899.) 
Iddings, J. P. 
The intrusive rocks of the Gallatin mountains, Bunsen peak and 
mount Everts. (Mon. 32, Part 2, pp. 60-88, pi. 11, 1899.) 
Kemp, J. F. 
Pre-Cambrian sediments in the Adirondacks. (Science, vol. 12, pp. 
81-98, July 20, 1900.) 
Keyes, C. R. 
Correlative relation of certain subdivisions of the coal measures of 
Kansas. (Am. Geol., vol. 25, pp. 347-352, June, igoo.) 
Keyes, C. R. 
Origin and classification of ore deposits. (Trans. Inst. Min. Eng., 
vol. 30, pp. 34, Author's edition 1900.) 
Knowlton, F. H. 
Fossil Flora [Yel. Nat. Park.] (Mon. 32, Part 2, pp. 794-882, pis. "]"]- 
121, 1899.) 
Lamb, H. M. 
The histry and progress of mining in British Columbia. (Eng. Mag., 
vol. 19, July, 1900, pp. 543-566.) 
O'Harra, C C. 
A history of early explorations and of the progress of geological in- 
vestigation in the Black Hills region. Bull, No. 4, of the South Dakota 
school of mines, pp. 88, plates, April, 1900, 
Packard, A. S. 
View of the Carboniferous fauna of the Narragansett basin. (Am. 
Acad. Arts and Sci., vol. 35, 1900, pp. 399-405.) 
Penfield, S. L. 
Interpretation of mineral analysis: a criticism of recent articles on 
the constitution of Tourmaline. (Am. Jour. Sci., Vol. 10, pp. 19-32, July, 
1900.) 
Price, J. A. 
A report upon the Waldron shale and its horizon. (24th Rep. Dept. 
Geol. and Nat. Res., Indiana, pp. 81-143, 1900.) 
Prosser, C. S. 
Section of the AUoway, N. Y., well. (Am. Geol., vol. 25, pp. 353-355, 
June, 1900.) 
Ries, H. 
Preliminary report on the clays of Alabama. Bull. No. 6, Geol. 
Sur. Ala., 220, pp. Jacksonville, Fla., 1900. 
