SMITHSONIAN INSTITUTION,
BUREAU OF AMERICAN ETHNOLOGY,
Washington, D. C., January 23, 1919.

SIR: I have the honor to transmit the accompanying manuscript, entitled "Prehistoric Villages, Castles, and Towers of Southwestern Colorado," by J. Walter Fewkes, and to recommend its publication, subject to your approval, as Bulletin 70 of this Bureau.

Very respectfully,

J. WALTER FEWKES,
Chief.

DR. CHARLES D. WALCOTT,
Secretary of the Smithsonian Institution.