Author's Catalogue. 57 
BLAKE, w. p. 
Gypsum cU-posits in Arizona. (Bull. 223 U. S. Geol. Sur., p. 100.) 
BOUTWELL, J. M. 
Gypsum deposits in Utah. (Bull. 223 U. S. G. S., p. 102.) 
BRANNER, JOHN C. 
Tlie stone reefs of Brazil, their greological anrl geographical rela- 
tions, with a chapter on the coral reefs. Vol. 44, Bull. Mus. Comp. 
Zool., pp. 285. 99 plates. May, 1904. Cambridge, Mass. 
BROADHEAD. G. C. 
The Loess. (Am. Geol... vol. 33, p. 393, May, 1904.) 
CHAPMAN, R. H. 
The value of topographic maps. (Eng. Min. Jour., vol. 77, p. 843. 
May 26, 1904.) 
CLAPP, F. G. 
Relations of gravel deposits in the northern part of glacial 
lake Charles, Massachusetts. (Jour. Geol., vol. 12, pp. 198-215, April- 
ISIay. 1904.. 
CLARKE, J. M. 
The destruction of Niagara Falls. (The Polytechnic, Troy, X. Y., 
vol. 20. pp. 177-1S2, May 28, 1904.) 
CROSBY, W. O. 
Structure and composition of the delta plains formed during the 
Clinton stage in the glacial lake of the Nashua valley. (Tech. Quart., 
vol. 16, pp. 240-254, vol. 17, pp. 37-75.) 
CROSBY, W. O. 
Geology of the Weston aqueduct of the Metropolitan water 
works in Southboro, Framingham, AVayland and Weston, Massa- 
chusetts. (Tech. Quart., vol. 17, pp. 101-116, Mar., 1904.) 
CROSBY, W. O. 
The hanging valleys of Georgetown, Colorado. (Tech. Quart., 
vol. 16, pp. 41-50, March, 1903.) 
CROSBY, W. O. 
A study of the geology of the Charles river estuary and Boston 
harbor, \\ith special reference to the building of the proposed dam 
across the tidal portion of the river. (Tech. Quart., vol. 10, pp. 64-92, 
June, 1903.) 
DARTON, N. H. 
Gypsum deposits of South Dakota. (Bull. 223 U. S. G. S.. p. 76.) 
DARTON. N. H. 
Preliminary report on the geology and water resources of Ne- 
braska west of the one hundred and third meridian. U. 3. G. S., 
Prof. Pap. No. 17, pp. 69. 43 plates, 1903. 
DAVIS, W. M. 
An excursion to the plateau province of Utah j nd Arizona. (Bull. 
Comp. Zool., vol 42, pp. 1-50. 7 plates. June, 1903.) 
