Records and results of magnetic survey of Pennsylvania and parts of adjacent States in 1840 and 1841, with someadditional records and results of 1834-35, 1843, and 1862, and map.

Other author Bache, A. D. (Alexander Dallas), 1806-1867.
Format Microform
Publication InfoWashington, D.C. : [publisher not identified], 1863.
Descriptionvi, 82 pages : map ; cm.
Subjects

SeriesSmithsonian Contributions to Knowledge, Vol. 13, Art. 8
General noteReuse of record except for individual research requires license from LexisNexis Academic & Library Solutions.
Citation/References note CIS Index to U.S. Executive Branch Documents, 1789-1909 Part 6
Reproduction noteJoyner- Microfiche. [Bethesda, Md.]: LexisNexis Academic & Library Solutions, 1995. 11 x 15 cm. (CIS US Executive Branch Documents : no. SI106-13.8)
Govt. docs number SI 1.6:v.13/[art.8]