Monthly Author's Catalogue. 117 
DAY, DAVID T. 
Gold and silver in 1903 by individual states and territories. 
(Min. Res. U. S.. 1903, pp. 166-201.) With contributions by A. H. 
Brooks, V. C. Heikes, C. G. Yale, A. N. Winchell, and E. P. Porter. 
DAY, DAVID T. 
The Production of Gold and Silver in 1903. (Ex. Min. Re- 
sources, U. S., 1903, pp. 157-199.) 
DRYER, C. R. 
Finger Lake region of western New York. (Bull. G. S. A., vol. 
15, pp. 449-460, pts. 37-41, Sept., 1904.) 
EASTMAN, C. R. 
Pisces. (Mar. Geol. Sur., Miocene, pp. 71-93.) 
ENO, F. H. 
The uses of hydraulic cement. Bull. 2, 4th series, Ohio Geol. 
Survey, pp. 260, 1904. 
FAIRCHILD, H. L. 
Proceedings of the sixteenth annual meeting, [G. S. A.] held at 
St. Louis, Missouri, Dec. 30 and 31, 1903, and January 1, 1904, in- 
cluding proceedings of the fifth annual meeting of the Cordilleran 
section, held at San Francisco, January 1 and 2, 1904. (Bull. G. S, 
A., vol. 15, pp. 523-636, pis 52-59, Dec, 1904.) 
FARRINOTON, O. C. 
Geology and Geography of western Mexico [Abstract]. (Bull. 
G. S. A., vol. 15, p. 549.) 
GILBERT, G. K. 
Style in scientific composition. (Science, vol. 21, p. 28, Jan. 6, 
1905.) 
GLENN, L. C. 
Pelecypoda. (Mar. Geol. Sur., Miocene, pp. 274-403.) 
GRANT, U. S. 
Field work in the "Wisconsin lead and zinc district [Abstract]. 
(Bull. G. S. A., vol. 15, p. 552.) 
GULLIVER, F. P. 
Nantucket shore lines. II. (Bull. G. S. A., vol. 15, pp. 507-522, 
pis. 48-51, November, 1904.) 
HATCH, F. H. (and G. S. CORSTORPHINE.) 
The origin of the Witwatersrand gold. (Eng. Min. Jour., vol, 
79, p. 80.) 
HEILPRIN, ANGELO. 
The Tower of Pelee; new studies of the great volcano of Mar- 
tinique, 4to pp. 62, 22 plates, J. B. Lippincott Company, Philadel- 
phia, 1904. 
HITCHCOCK, C. H. 
New studies in the Ammonoosuc district of New Hampshire. 
(Bull. G. S. A., vol. 15, pp. 461-4S2, pis. 42-44, October, 1904.) 
HOBBS, W. H. 
The frontier of Physiography. (Science, vol. 18, pp. 538-540, 
October 23, 1903.) 
