Digital Library Search
![Horizontal intensity variometers on left cgs02199.jpg Horizontal intensity variometers on left](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_cgs02199.jpg?itok=zuDsLmEd)
Image
Download ( 1.61 MB )Permalink
https://www.noaa.gov/media/digital-library-photo/pl23cgs02199jpgDescription
Horizontal intensity variometers on left
Collection
Historic Coast & Geodetic Survey
Keywords
Coast and Geodetic Survey
Geophysics Geomagnetism