Monthly Author's Catalogue. 191 
HILLEBRAND, W. F. 
The composition of yttrialite, with a criticism of the formula 
assigned to thalenite. (U. S. G. S. Bull. No. 262, pis. 61-69.) 
HOYT, J. C. (see HALL, M. R. and TAYLOR, F. N.) 
JOHNSON, W. D. 
The Grade Profile in Alpine Glacial Erosion. (Bull. Sierra Club, 
vol. 5, No. 4, p. 271, pis. 4, June, 1905). 
JOHNSON, R. D. 0. 
Tennessee Phosphate. (Eng. Min. Jour., vol. 80, p. 204, Aug. 
5, 1905). 
KEYES, C. R. 
Zinc Carbonite Ores of the Magdalena Mountains. (Min. Mag. 
vol. 12, No. 2, pp. 109-114, Aug., 1905). 
KEYES, C. R. 
Bisection of Mountain Blocks in the Great Basin Region (Ab- 
stract). (Iowa Acad. Sci.) 
KEYES, C. R. 
Geological Structure of the Jornado del Muert.o and adjoining 
B'olson Plains. (Iowa Acad. Sci.) 
KEYES, C. R. 
Northward Extension of the Lake Valley Limestone. (Iowa 
Academy of Sciences). 
KEYES, C. R. 
The Fundamental Complex beyond the Southern End of the 
Rocky Mountains. (Am. Geol., vol. 36, p. 112, Aug., 1905). 
KEYES, C. R. 
Ore deposits of the Sierra de Los Caballos. (Eng. Min. Jour., 
vol. 80, p. 149, July 29, 1905). 
KUMMEL, H. B. (and S. H. HAMILTON). 
A Report upon some molding Sands of New Jersey.) GeoL 
Sur. N. J., Ann. Rep. 1904, pp. 187-244). 
KUMMEL, H. B. 
The Mining Industry. ((Geol. Sur. N. J., Ann. Rep. 1904, pp. 
291-303). 
LAKES, A. 
Igneous rocks in ore deposition. (Eng. Min. Jour., vol. 80, p. 
196, Aug. 5, 1905). 
LINDGREN, WALDEMAR. 
Minerals from the Clifton-Morenci District, Arizona. (U. S. G. 
S., Bull. No. 262, pp. 42-55, 1905). 
LULL, PROF. R. S. 
Restoration of the Titanothere Megacerops. (Am. Nat., vol. 
39, p. 419, July, 1905). 
