Author's Catalogue. 53 
CLAYPOLE, E. W. 
The Devunian Era in the Ohio basin (concluded). (Am. Geo)., vol. 
32, pp. 335-352, Dec, 1903.) 
CLEMENTS, J. MORGAN. 
The \'ermilion iron-bearing' district of Minnesota, with an atlas. 
U. S. Geol. Sur. Mon, 45, pp. 463, pis. 13, 1903. 
COLE, L. J. 
The Delta of the St. Clair river. (Geol. Sur., Mich., vol. 9, pp. 1- 
28, 1903.) 
COLLIE, G. L. 
Ordovician section near Bellefonte, Pennsylvania. (Bull. G. S. 
A., vol. 14, pp. 407-420, pi. 59, Oct., 1303.) 
ELLS, R. W. 
Notes on .some Interesting rock-contacts- in the Kingston district, 
Ontario. (Trans. R. Soc. Can., vol. 9, Sec. 4, pp. 97-108, 1903.) 
FOERSTE, A. F. 
Silurian and Devonian limestones of western Tennessee (con- 
cluded). (Jour. Geol., vol. 11, pp. 679-715, Oct.-Nov., 1903.) 
FULLER, M. L. (and A. C. VEATCH). 
Results of the resurvey of Long Island, New York. (Science, vol, 
18, pp. 729-731, Dec. 4, 1903.) 
GIDLEY, J. W. 
The Freshwater Tertiary of northwestern Texas. American Mu- 
seum expeditions of 1899-1901. (Bull. Am. Mus. Nat. Hist., vol. 
19, pp. 617-635, pis. 52-58, Nov., 1903.) 
GILBERT, G. K. 
Powell as a geologist. (Proc. Wash. Acad. Sci., vol. 5, pp. 113-117, 
July, 1903.) 
GILBERT, G. K. 
John Wesley Powell: a memorial to an American explorer and 
scholar. Edited by Grove Karl Gilbert. (Reprinted from "The Open 
Court," Chicago, 1903. Comprising articles by Mrs. M. D. Lincoln, 
(Bessie Beach), G. K. Gilbert, Marcus Baker and Paul Carus.) 
GIRTY, G. H. (GEO. I. ADAMS and DAVID WHITE). 
Stratigraphy and Paleontology of the Upper Carboniferous rocks 
of the Kansas section. Bull. 211, U. S. G. S., pp. 123, pis. 4, 1903. 
GRABAU, A. W. 
Paleozoic coral reefs. (Bull. G. S. A., vol. 14, pp. 337-352, pis. 47- 
48, Sept., 1903.) 
GRIMSLEY, G. P. 
Oil, gas and glass, chemical industries and minerals in Kansas. 
(First Bien. Rep. Kans. Bureau of Labor, 1901-02, separatum re- 
paged, pp. 32, Topeka, 1903.) 
HAMBACH, G. 
A Revision of the Blastoideae, with a proposed new classifica- 
tion and description of new species. (Trans. St. Louis Acad. Sci., 
presented by title June 3, 1901, pp. 67, pis. 5.) 
