Author's Catalogue. 381 
Ells, R. W. ' 
The Physical Features and Geology of the Paleozoic basin between 
the Lower Ottawa and the St. Lawrence rivers. (Trans. Roy. Soc. 
Can., vol. 6, sec. ser., section iv, pp. 99-120. 1900.) 
Gallaher, Leo. 
Biennial report of the State Geologist (Missouri). Jefferson Citv 
pp. 55. igoi. 
Gannett, Henry. 
The general geography of Alaska. (Nat. Geog. Mag., vol. 12, pp. 
180-196. May, 1501.) 
Grabau, A. W. 
Lake Bouve, an extinct glacial lake in the Boston basin. (Occ. Pap. 
Bos. Soc. Nat. Hist., vol. iv, part 3, pp. 564-600. July, 1900.) 
Hall, C.W. 
Sources of the constituents of Minnesota soils. (Bull. Minn. Acad. 
Sci., vol. 3, pp. 388-406. 1901.) 
Hershey, O. H. 
The geology of the central portion of the Isthmus of Panama. (Bull. 
Dept. Geol., Univ. Gal., vol. 2, pp. 231-267. Mar., 1901.) 
Hilgard, E. W. 
A historical outline of the geological and agricultural survey of 
Mississippi (Am. Geol., vol. 27, pp. 284-310. May, 1901.) 
Hollick, Arthur. 
A reconnaissance of the Elizabeth islands. (Ann. N. Y. Acad. 
Sci., vol. 13, pp. 387-401, pis. viii-xv. 1901.) 
Keyes, C. R. 
Derivation of the terrestrial spheroid from the rhombic dodecahe- 
dron. (Jour. Geol., vol. 9, pp. 244-249. Apr.-May, 1901. 
Keyes, C. R. 
A depositional measure of unconformity. (Bull. Geol. Soc. Am., 
vol. i2, pp. 173-196, pi. 19. Apr., 1901. 
Kummel, H. B. (and Stuart Weller) 
Paleozoic limestones of the Kittatinny valley, New Jersey. (Bull. 
Geol. Soc. Am., vol. 12. pp. T47-164. Apr., 1901.) 
Lambe, L. M. 
A revision of the Genera and species of Canadian paleozoic corals. 
The Madreporaria aporosa and the Madreporaria rugosa. (Cont. Can. 
Pal., vol. 6, Part 2, pp. 97-197. Geol. Sur. Can., pi. vi-xviii. 1901.) 
McCasIin, D. S. 
The Geology of the Artesian basin in South Dakota. (Bull. !Minn. 
Acad. Sci., vol. 3, pp. 380-388. 1901.) 
Merriam, J. C. 
A contribution to the Geology of the John Day basin. (Bull. Dept. 
Geol., Univ. Cal., vol. 2, pp. 269-314. April, 1901.) 
