A new and concise method of completely obviating the difficulty occasioned in surveying by local attractions of the magnetic needle, in most parts of the United States, by back observation ... [electronic resource] / by Jonas Preston Fairlamb
Imprint
Wilmington, Del. : Printed by William A. Miller, 1818
Microform version available in the Readex Early American Imprints series
Electronic text and image data. [Chester, Vt. : Readex, a division of Newsbank, Inc., 2004-2007] Includes files in TIFF, GIF and PDF formats with inclusion of keyword searchable text. (Early American imprints. Second series ; no. 43987)
