n,
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.

RIDGWAY, R.
1901. The birds of North and Middle America. U. S. Nation. Mus.
Bull., 50, part I, xxx + 715 pp., 20 pls.
1904. _Ibid._, part III, xx + 801 pp., 19 pls.
1912. Color standards and color nomenclature. (Washington, D. C.,
Ridgway), iii + 44 pp., 53 pls.

_Transmitted March 3, 1918._

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