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2 results returnedPractical rules for the use of the magnetometer in geophysical prospecting
Magnetometric survey of the Mahopac magnetite mine, Putnam County, N.Y.
Published Year
Subject
- Magnetometers (2) *
- Iron mines and mining--New York (State)--Putnam County (1)
- Magnetite--New York (State)--Putnam County (1)
- Magnetometer (1)
- Mine examination--New York (State)--Putnam County (1)
- Prospecting--Geophysical methods (1)
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