Description of the transit circle of the United States Naval Observatory
Subtitle: with an investigation of its constants
By: by Simon Newcomb.
Series: CIHM/ICMH microfiche series -- no. 11927.
Publisher: G.P.O.
Published: 1981
Place of publication: Washington
Language: eng
Format: Microform
Number of pages: 50
Subjects: Astronomical instruments.
Notes: At head of title: Appendix I.

"Prepared by order of Rear Admiral Charles Henry Davis, U.S.N. superintendent."

Reproduction of original in: Library of Congress, Photoduplication Service.

Pre-1900 Canadiana.

Microfiche. Ottawa : Canadian Institute for Historical Microreproductions, 1981. 1 microfiche (40 fr.) ; 11 x 15 cm. (CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches ; no. 11927).