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![Theodolite magnetometer theb1148.jpg Theodolite magnetometer](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb1148.jpg?itok=eWbEa263)
Description
Theodolite magnetometer.Fig. No. 29, Report of Superintendent ... 1865 (Image credit: NOAA Central Library)
Credit
NOAA Central Library
Display Date
1865
Collection
Historic Coast & Geodetic Survey
Keywords
Geophysics
Instruments
Geomagnetism