182[5] [Male] Nov. 29, Mt. Wilson, 1895 Los Angeles Co., Calif. 67.0 63.0 8.9 4.3 725[5] [Male] Nov. 1, Mt. Wilson, 1897 Los Angeles Co., Calif. 70.1 66.9 9.0 4.4 963[5] [Male] Oct. 31, Mt. Wilson, 1898 Los Angeles Co., Calif. 67.0 63.3 8.2 4.0 636[6] [Male] Feb. 1, Mt. Wilson, 1896 Los Angeles Co., Calif. 70.3 65.5 8.3 4.1 637[6] [Male] Feb. 1, Mt. Wilson, 1896 Los Angeles Co., Calif. 68.6 65.8 8.2 4.0 1832[6] [Male] Dec. 12, Mt. Wilson, 1896 Los Angeles Co., Calif. 72.3 65.7 7.7 4.0 1834[6] [Male] Dec. 12, Mt. Wilson, 1896 Los Angeles Co., Calif. 65.4 63.7 8.0 3.9 1836[6] [Male] Dec. 12, Mt. Wilson, 1896 Los Angeles Co., Calif. 67.7 63.0 ... 4.0 5516[6] [Male][9] Nov. 27, Mt. Wilson, 1903 Los Angeles Co., Calif. 72.1 66.6 8.6 3.9 6073[6] [Male] Sept. 21, Pasadena, 1904 Los Angeles Co., Calif. 69.7 66.0 9.0 4.3 7458[6] [Male] Dec. 23, Pasadena, 1905 Los Angeles Co., Calif. 70.0 66.7 7.8 3.6 9958[7] [Male] Oct. 31, Mt. Wilson, 1897 Los Angeles Co., Calif. 70.3 67.2 8.6 4.3 3364[7] [Male] Sept. 18, Santa Ana Mts., 1908 Orange Co., Calif. 70.8 66.0 9.5 4.0 x3325[8] [Male] July 4, Hd. of Big Cr., 1905 Monterey Co., Calif. 70.5 66.0 9.0 4.2 [Footnote 5: Coll. H. S. Swarth.] [Footnote 6: Coll. J. Grinnell.] [Footnote 7: Mus. Vert. Zool.] [Footnote 8: Coll. J. & J. W. Mailliard.] [Footnote 9: Type.] LITERATURE CITED AMERICAN ORNITHOLOGISTS' UNION COMMITTEE. 1886. The code of nomenclature and check list of North American birds adopted by the American Ornithologists' Union. (New York, American Ornithologists' Union), viii + 392 pp. 1910. Check-list of North American birds. Ed. 3, revised (New York, American Ornithologists' Union), 430 pp., 2 maps. BAIRD, S. F. ("with the co operation of" CASSIN, J., and LAWRENCE, G. N.) 1858. Birds. Pacific Railroad Reports, 9, lvi + 1005 pp. BIRTWELL, F. J. 1901. Description of a supposed new subspecies of _Parus_ from New Mexico. Auk, 18, pp. 165-167. GAMBEL, W. 1843. Descriptions of some new and rare birds of the Rocky Mountains and California. Proc. Acad. Nat. Sci. Phila., 1, pp. 258-262. GRINNELL, J. 1908. The southern California chickadee. Condor, 10, pp. 29-30.