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Eastwood, Alice. 1909. Synopsis of the Mexican and Central American species of Castilleja. Proc. Amer. Acad. Arts 44: 563-591.

Gilman, M. F. 1909. Among the thrashers in Arizona. Condor 11:49-54.

Cameron, E.S. 1908. The birds of Custer and Dawson counties, Montana. Auk 25:39-56.

Heimerl, A. 1908. Two new species of Abronia. Smithsonian Misc. Coll. 52: 197-198.

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Knight, O.W. 1908. The Birds of Maine with Key to and Description of the Various Species Known to Occur or to Have Occurred in the State, an Account of Their Distribution and Migration, Showing Their Relative Abundance in the Various Counties of the State

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Cobb, S. 1906. A little black rail in Massachusetts. Bird-Lore 8:136-137.

Howell, A. H. 1906. Revision of the skunks of the genus Spilogale. North American Fauna 26:1-55.

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Bailey, V. 1905. Biological survey of Texas. Bur. Biol. Sur. North American Fauna 25. U.S. Department of Agriculture. 222 pp.

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Dyar, H.G. 1905. Descriptions of new North American moths and larvae. Museum of the Brooklyn Institute of Arts and Sciences, Science Bulletin 1:185.

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Richardson, H. 1905. Contributions to the natural history of the isopod, U.S. Nat. Mus. Proc. V.27, NO. 1350:1-32.

Cockerell, T. D. A. 1904. The North American species of Hymenoxys. Bulletin of the Torrey Botanical Club 31: 461-509. 10 p.

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Clark, J. H. 1904. Curve-billed and Palmer's thrashers. Auk 21:214-217.

Emerson, O. 1904. Destruction of birds by wires. Condor 6(2):37-38.

Holland, W. J. 1903. The moth book. A guide to the moths of North America. Doubleday, Page & company, New York. 479 pp.

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Head, A. 1903. Nesting habits of two flycatchers at Lake Tahoe. Bird-Lore 5:153-155.

Jones, L. 1903. The birds of Ohio, a revised catalog. Ohio State Academy of Science, Special Papers No. 6. 241 pp.

Miller, G.S. 1903. A second species of Euderma maculatum. Proc Bio Soc Wash. 16:165-166.

Otte, D. (in prep). The North American Grasshoppers, Volume III.

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Tout, W. 1902. Ten years without a gun. Proceedings of the Nebraska Ornithological Union 3:42-45.

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Wagner, W.L., and D.G. Sabo. Undated. Status report for Escobaria sneedii var. sneedii. Report prepared for the U.S. Fish and Wildlife Service, Albuquerque, New Mexico.

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Wayne, A. T. 1899. Destruction of birds by the great cold wave of February 13 and 14, 1899. Auk 16:197-8.

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Preble, E. A. 1899. Revision of the jumping mice of the genus Zapus. North American Fauna 15:1-43.

Peabody, P. B. 1899. Clay-colored Sparrow. Oologist 16:177-180.

Greene, E. 1898. Pittonia Volume 3. Pages 270-273.

Richardson, H. 1898. Description of a new crustacean of the genus Spaeroma from a warm spring in New Mexico: U.S. Nat. Mus. Proc. v.20 no. 1128, p. 465-466.

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