1 88 The American Geologist. September, 1905 
here presented, with chapters also on the great iron ranges of 
Wisconsin and Minnesota. The marvelously large and growing 
traffic that passes through the Sault Ste. Marie canals, both on the 
United States and Canadian sides, and the semi-centennial celebra- 
tion of the opening of the first canal there, are very fully treated. 
Not only biography and history, but the economic development of 
the lake Superior region, so far as it has depended on iron ore 
production, are vividly depicted; and in all the wonderful progress 
of that region during the past fifty years the subject of this bio- 
graphy was a conspicuous part. w. u. 
MONTHLY AUTHOR'S CATALOGUE 
OF AMERICAN GEOLOGICAL LITERATURE 
ARRANGED ALPHABETICALLY. 
ALDEN, WM. C. 
The Delavan Lobe of the Lake Michigan Glacier of the Wis- 
consin stage of Glaciation and Associated Phenomena. (U. S. G. S. 
Prof. Pap. No. 34, pp. 101, Pis. 15, 1904.) 
ANDERSON, N ETTA C. 
A Preliminary List of Fossil Mastodon and Mammoth Remains 
in Illinois and Iowa. (Augustana Lib. Pub. No. 5, pp. 9-43, 1905). 
ARNOLD, RALPH. 
Coal in Clallam County. (U. S. G. S. Bull. No. 260, pp. 413-422, 
1905). 
ASHLEY, GEO. H. 
Coal in the Nicholas Quadrangle. (U. S. G. S. Bull. No. 260, 
pp. 422-429, 1905). 
BAGG, R. M., Jr. 
The Minerals of Maguarichic. (Eng. Min. Jour. vol. 80, p. 2, 
July 6, 1905). 
BAIN, H. FOSTER. 
Soft-Lead Resources of the United States. (Mining Mag. vol. 
12, p. 19, July, 1905). 
BAIN, H. FOSTER. 
Principal American Fluorspar Deposits. (Min. Mag., vol. 12, 
No. 2, pp. 115-119, Aug., 1905). 
BASCOM, F. 
Piedmont District of Pennsylvania. (Bull. Geol. Soc. Am., vol. 
16, pp. 289-328, Pis. 48-64, 1905). 
