Author's Catalogue. 125 
CARMONY, F. A. 
Report on Jefferson County. (Geol. Sur. Nev., vol. 1, pp. 235-242, 
Map, 1903.) 
CHALMERS, R. 
The Surface Geology shown on the Frederic-ton and Andover 
Quarter-sheet Maps, New Brunswick. (Geol. Sur. Can., vol. 12, Rep. 
M., pp. 40, 1899.) 
CHAMBERLIN, T. C. 
The Origin of Ocean Basins on the Planetessimal Hypothesis. 
(Am. Geol., vol. 32, No. 7, July, 1903.) 
CLARKE, F. W. (and GEO. STEIGER). 
The Action of Ammonium Chloride upon Silicates. (U. S. G. S., 
Bull. No. 207, Series E., pp. 57, 1903.) 
CLAYPOLE, E. W. 
The Devonian Era in the Ohio Basin, Part 1. (Am. Geol., vol. 
32, No. 1, July, 1303.) 
CLELAND, H. F. 
A Study of the Fauna of the Hamilton Formation of the Cayuga 
Lake section in central New York. (U. S. G. S. Bull. No. 206, Series 
C„ pp. 112, 1903.) 
COMSTOCK, FRANK M. 
A Small Esker in Western New York. (Am. Geol., vol. 32, No. 1, 
July, 1903.) 
CROSBY, W. O. 
The Hanging Valleys of Georgetown, Colorado. (Am. Geol., vol. 
32, No. 1, July, 1903.) 
DALY, R. A. 
The Geology of Ascutney Mountain, Vermont. (U. S. G. S. Bull. 
No. 209, Series B., pp. 122, 1903.) 
DIXON, J. D. (and A. W. NOLAN). 
Geology of St. Helen's Island. (Can. Rec. Sci., vol. 9, No. 1, pp. 
53-67, Jan. 1903.) 
EATON, G. F. 
Characters of Pteranodon. (Am. Jour. Sci., vol. 16, No. 91, pp. 
83-87, July, 1903.) 
ELLS, R. W. 
The Geology of Argenteuil, Ottawa, and part of Pontiac Counties, 
Province of Quebec, and part of Carleton, Russell and Prescott 
Counties, Province of Ontario. (Geol. Sur. Can., vol. 12, Rep. J., pp. 
139, 1899.) 
ELLS, R. W. 
The Geology and Natural Resources of the Area included in the 
Map of Ottawa and Vicinity. (Geol. Sur. Can., vol. 12, Rep. G., pp. 
51, 1899.) 
GRATON, L. C. 
The Petrographical Relations of the Laurentian Limestones. 
(Can. Rec. Sci., vol. 9, No. 1, pp. 39, Jan., 1903.) 
