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![Magnetometer and altazimuth instrument theb1142.jpg Magnetometer and altazimuth instrument](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb1142.jpg?itok=HGqVZC0d)
Description
Magnetometer and altazimuth instrument.Plate III, Fig. No. 9, Appendix No. 8, Report of Superintendent ... 1894, p. 276
Display Date
1894
Collection
Historic Coast & Geodetic Survey
Keywords
Geophysics
Instruments
Geomagnetism