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Induction Apparatus

Induction Apparatus

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Usage conditions apply
The “NELSON / INDUCTION APPARATUS / U.S.C.&G.S. / NO. M2” inscription on the top of the box refers to James H. Nelson, a U.S. Coast & Geodetic Survey scientist who specialized in terrestrial magnetism.
Ref: James H. Nelson, “An Electromagnetic Method of Determining Induction Coefficients of Magnetometer Magnets,” Terrestrial Magnetism 43 (1938): 159.
James H. Nelson, Louis Hurwitz, and David G. Knapp, Magnetism of the Earth (Washington, D.C., 1962; reprint 1964).
Currently not on view
Object Name
induction apparatus
case: 4 7/8 in x 27 9/16 in x 8 5/16 in; 12.3825 cm x 70.00875 cm x 21.11375 cm
overall in case: 4 7/8 in x 27 1/2 in x 7 7/8 in; 12.3825 cm x 69.85 cm x 20.0025 cm
ID Number
catalog number
accession number
Credit Line
U.S. Department of Interior, U.S. Geological Survey
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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