Vereinigte Staaten von Nordamerika

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Clark, W. B., and M. W. Twitchell The Meso­zoic and Cenozoic Echinodermata of the United States .

In: Monogr. U. S. Geol. Surv. 54. Washing­ton 1915.

Clarke, F. W., and others Contributions to mineralogy from the United States Geolo­ gical Survey .

In: Bull. U. S. Geol. Surv. 262. Washing­ton 1905.

Clarke, J. M. On the higher Devonian faunas of Ontario County, N. Y.

Ebendann: 16. Washington 1885.

— The „Hercyn-Frage“ and the Helderberg limestones in North America .

Aus: Amer. Geologist. Minneapolis 1891.

— The Oriskany Fauna of Becraft Mountain, Columbia Co., N. Y.

In: N. York State Mus. ann. Rep. 53, 2. Albany 1900.

— Naples Fauna in Western New York. Ebendann: 57, 3. Albany 1903.

— Geologic Map of the Tully Quadrangle.

In : N. York State Mus. Bull. 82. Albany 1905.

— Early Devonic History of New York and Eastern North American.

Pt. 1 in: N. York State Mus. ann. Rep. 60, 4. Albany 1908.

Pt. II ebendann: 62, 4. Albany 1909.

Clarke, J. M., and D. D. Luther Stratigraphy of Canandaigua and Naples Quadrangles.

In: N. York State Mus. Bull. 63. Albany 1905.

-Watkins and Elmira Quadrangles.

Ebendann: 81. Albany 1905.

-Geologic Maps and Descriptions of the

Portage and Nunda Quadrangles including a map of Letchworth Park.

Ebendann: 118. Albany 1908.

Clarke, J, M., and Rudolf Ruedemann Guelph Formation and Fauna of New York State . In: N. York State Mus. ann. Rep. 57, 3. Albany 1903.

Cleland, H. F. A study of the fauna of the Hamilton formation of the Cayuga Lake section in central New York .

In: Bull. U. S. Geol.Surv. 206. Washington 1903.

—• The Fossils and Stratigraphy of the Middle Devonic of Wisconsin .

'n: Bull. Wisconsin Geol. Survey. XXI. Madison 1911.

Clements, J. M. The Vermilion iron-bearing district of Minnesota .

In: Monogr. U. S. Geol. Surv. 45. Washing­ton 1903.

Clements, J. M., and H. L. Smyth The Crystal Falls iron-bearing district of Michigan ; with

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a chapter on the Sturgeon River tongue, by W. S. Bayley, and an introduction by C. R. Van Hlse.

Ebendann: 36. Washington 1899.

Collier, A. J. A reconnaissance of the north­western portion of Seward Peninsula , Alaska . In: Prof. Pap. U. S. Geol. Surv. 2. Washing­ton 1902.

— The coal resources of the Yukon , Alaska . In: Bull. U. S. Geol. Surv. 218. Washington

1903.

— The tin deposits of the York region, Alaska . Ebendann: 229. Washington 1904.

— Geology and coal resources of the Cape Lisburne region, Alaska .

Ebendann: 278. Washington 1906.

— The Arkansas coal field, with reports on the paleontology, by David White and G. H. Girty .

In: Bull. U. S. Geol. Surv. 326. Washington 1907.

Collier, A. J., F. L. Hess, P. S. Smith, and A. H. Brooks The gold placers of parts of Seward Peninsula , Alaska , including the Nome Council, Kougarok, Port Clarence, and Goodhope precints.

Ebendann: 328. Washington 1908.

Condit, D. Dale Conemaugh Formation in Ohio . In: Bull. Geol . Surv. Ohio (4) 17. Columbus , Ohio 1912.

— Phosphate deposits in the Wind River Mountains , near Lander, Wyoming .

In: Bull. U. S. Geol. Surv. 764. Washington 1924.

Condon, Thomas A new fossil pinniped (Desmatophoca Oregonensis) from the mio­cène of the Oregon Coast .

Aus: University of Oregon Bull. Suppl, to Vol. III. Eugene , Oregon 1906.

Conrad, T. A. Observations on the Eocene formation, and descriptions of one hundred and five new fossils of that period, from the vicinity of Vicksburg , Mississippi .

Aus: Journ. of the Acad. Nat. Sei. Phila­ delphia . (N. S.) I. Philadelphia 1848.

— Descriptions of new fossil and recent Shells of the United States .

Ebendarin: (2) I. Philadelphia 1849.

—- Descriptions of New Fossil Shells of the United States .

Ebendarin: (2) II. Philadelphia 1853.

— On the fossil shells collected in California by Wm. P. Blake .

Aus: Appendix to the preliminary geol. report of William P. Blake . Paleontology. Explorations and surv. for a railroad route from the Mississippi River to the Pacific Ocean . Washington 1855.