Appropriations expended, results reached, and present condition of the work of the Astrophysical observatory.
Contributors: Langley, S. P. 1834-1906.
Series: 57th Cong., 1st sess. Senate. Doc -- no. 20
Publisher: Govt. print. off.
Published: 1902
Place of publication: Washington
Language: eng
Number of pages: 308
Subjects: Smithsonian institution. Astrophysical observatory. [from old catalog]; Infrared spectra.; Solar eclipses -- 1900.