Magnetic observatory, at the Girard College, Philadelphia, ordinary magnetic and triple observations, from June to December, 1840.

Bibliographic Details

Corporate Authors:	United States. Army. Corps of Engineers, ProQuest (Firm)
Format:	Government Document eBook
Language:	English
Published:	Washington : [publisher not identified], 1844.
Series:	United States congressional serial set.
Subjects:	Girard College. Meteorology. Philadelphia (Pa.) Electronic books.
Online Access:	Connect to the full text of this electronic book