UNITED STATES NATIONAL MUSEUM
WASHINGTON, D. C., October 16, 1900.
PROF. S. P. LANGLEY,
Secretary, Smithsonian Institution.
SIR:
I have the honor of submitting herewith the data obtained by Mr. Rolla P. Currie concerning measurements, etc., of the common Turkey Buzzard (Cathartes aura) of the United States, as requested by you in your letter of March 29, last.
The difficulties in the way of securing these data, already explained by me in previous communications, are responsible for the delay in submitting them.
Hoping that this material may prove of use to you, I am,
Very respectfully,
R. RIDGWAY,