Underground magnetic observatory built at the University of Wisconsin in 1870's

Underground magnetic observatory built at the University of Wisconsin in 1870’s. Built under direction of Coast Survey. Observations made to Coast Survey specifications. One of many academic geophysical observatories built under guidance of C&GS

Photo Category: Geophysics - Geomagnetism
Photo Location: Wisconsin, Madison
Photo Date: 1879

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Author: Harper's New Monthly Magazine, March 1879, p. 520. NOAA Central Library/ NOAA

License: Public Domain Mark 1.0 (Public domain)

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Added On	18th October 2015
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