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

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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.

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

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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Silloway, P.M. 1904. Extracts from some Montana notebooks. Condor 6:148-150.

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

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

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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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Judd, S. D. 1901. The relation of sparrows to agriculture. Div. Biol. Surv., Bull. No. 15, U.S. Department of Agriculture, Washington, D.C. 98 pp.

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

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Dwight, J. 1895. The Ipswich sparrow. 56 pp.

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