380 The American Geologist. June. 1901. 
MONTHLY AUTHOR'S CATALOGUE 
OF AMERICAN GEOLOGICAL LITERATURE 
ARRANGED ALPHABETICALLY. 
Ami, H. M. 
Brief biographical sketch of Elkanah Billings. (Am. Geol., vol. 
2y, pp. 265-281. May, 1901.) 
Ami, H. M. 
The late George ISIercer Dawson. (Ott. Nat., vol. 15, pp. 43-52. 
May, 1901.) 
Barbour, E. H. 
Sand crystals and their relation to certain concretionary forms. 
(Bull Geol. Soc. Am., vol. 12, pp. 165-172, pis. 13-16. Apr., 1901.) 
Beede, J.W. 
A reconnaissance of the Blue valley Permian. (Kans. Univ. Quart., 
vol. 9, pp. 191-202, pi. 43. 
Brooks, A. H. 
A new occurrence of cassiterite in Alaska. (Science, N. S., vol. 
xiii. p. 593. Apr. 12, 1901.) 
Brooks, A. H. 
A reconnaissance from Pyramid harbor to Eagle City, Alaska, in- 
cluding a description of the copper deposits of the upper White and 
Tanana rivers. (21st Ann. Rep. U. S. Geol. Sur., Part 2, pp. 331-391. 
map, pis, xl-xlix. igoo.) 
Chalmers, R. 
The sources and distribution of the gold-bearing alluvions of Que- 
bec. (Ott. Nat., vol. 15, p. 2)2)- May, 1901.) 
Coleman, A. P. 
Marine and Freshwater beaches of Ontario. (Bull. Geol. Soc. Am., 
vol. 12, pp. 129-146. Mar., 1901.) 
Crosby, W. O. 
Arc the amygdaloidal melaphyrs of the Boston basin intrusive or 
contemporaneous? (Am. Geol., vol. 27, pp. 232-327. May, 1901.) 
Cumings, E. R. 
The use of Bedford as a formational name. (Jour. Geol.. vol. q, 
pp. 232-233. Apr.-May, 1901.) 
Dawson, G. M. 
Summary Report on the operation of the Geological Survey for the 
year 1900. (Geol. Surv. Canada. Sessional paper, No. 26, 64 Victoria, 
1901.) 
