Smithsonian contributions to knowledge.
Subtitle: Vol. 14
Publisher: Scholarly Publishing Office, University of Michigan Library
Published: December 20, 2005
Language: eng
Format: Paperback
Number of pages: 534
ISBN-13: 9781418188856
Subjects: History / United States / General
First sentence: THE observations of the vertical component of the magnetic force were commenced in June, 1840, and continued, with an exception in January, 1841, without interruption to the last of June, 1845.