Results of observations made at U.S. Coast and Geodetic Survey magnetic observatory near Tucson, Ariz. in 1919 and 1920.

Bibliographic Details

Corporate Author:	U.S. Coast and Geodetic Survey
Format:	Government Document eBook
Language:	English
Published:	[Washington] : GPO, 1919-1920.
Subjects:	Tucson (Ariz.) Electronic books.
Online Access:	Connect to the full text of this electronic document