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56 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, [bull. 271. 
Gordon (C. H.) — Continued. 
3. The work of rivers. 
Northwest Jour, of Education, vol. 15, no. 7, pp. 3-6, 2 figs., 1904. 
Discusses erosion and sedimentation by running waters. 
Gould (Charles Newton). 
1. General geology of Oklahoma. 
Okla., I)ept. Geol. & Nat. Hist., 2d Bien. Rept., pp. 17--74, 1902. 
Describes the drainage, the occurrence, character, and relations of igneous 
. rocks and sedimentary rocks of Carboniferous, Cretaceous, and Tertiary age, 
including an extended and detailed account of the Red Beds in Oklahoma, 
and a historical review of investigations upon their stratigraphic position 
and geologic age in Texas, Kansas, and Oklahoma. 
2. Oklahoma gypsum. 
Okla., Dept. Geol. & Nat. Hist., 2d Bien. Rept., pp. 75-137, 1902. 
Describes the occurrence, character, and utilization of the gypsum deposits 
in Oklahoma, and discusses their geologic relations and origin. 
3. Gypsum deposits in Oklahoma. 
U. S. Geol. Surv., Bull. no. 223, pp. 60-67,- 2 pis., 6 figs., 1904. 
Describes character, occurrence, economic development, and geologic relatio 
of gypsum deposits occurring in Permian strata. 
4. Geology of Jacobs Cavern, McDonald County, Missouri. 
Phillips Acad., Andover, Mass.. Dept. Archaeology, Bull. 1, pp. 9-12, 1904. 
5. Geology of the Wichita Mountains of Oklahoma. 
Okla., Dept. Geol. A: Nat. Hist., 3d Bien. Rept., pp. 15-22, 1904. 
Describes the physiography of the region, and the character and occurrence ofifll- v 
igneous rocks, and of sedimentary rocks of Cambrian, Ordovician, and Car 
boniferous age. 
G-owling (F. A.). 
1. Notes on geolog} T of Mineral Creek district, Pinal Count} 7 , Arizona, 
Mg. Rep., vol. 49, pp. 501-504, 1904. 
I describes the stratigraphy of the region and the occurrence of the ore deposits. 
G-rabau (Amadeus W.). 
1. On the classification of sedimentary rocks. 
Am. Geol., vol. 33, pp. 228-247, 1904. Columbia Univ., Geol. Dept,, ContJ 
vol. 12, no. 101,1904. 
Proposes a classification of sedimentary rocks and sets forth the principles 
upon which it is based. 
2. Phylogeny of Fusus and its allies. 
Smith. Misc. Coll., vol. 44, pp. 1-157, 18 pis., 22 figs., 1904. 
Includes descriptions of American Tertiary forms. 
G-rabau (A. AW). Johnson (C. W.), and. 
1. A new species of Clavilithes from the Eocene of Texas. 
See Johnson (C. W.) and Grabau (A. W.), 1. j fy e 
Grant (C. C). \\.) 
1. Notes on past collecting season. 
Hamilton Sci. Assoc, Jour. & Proc, no. 20, pp. 29-4(5, 4 figs., 1904. 
Gives notes on the occurrence of Silurian fossils near Hamilton, Ontario. 
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