Results of observations made at U.S. Coast and Geodetic Survey magnetic observatory at Cheltenham, Md., 1917 and 1918.

Bibliographic Details

Corporate Author:	U.S. Coast and Geodetic Survey
Format:	Government Document eBook
Language:	English
Published:	[Washington] : GPO, 1917-1918.
Subjects:	Cheltenham (Md.) Electronic books.
Online Access:	Connect to the full text of this electronic document