NOAA Photo Library Banner
Takes you to the Top Page Takes you to the About this Site page. Takes you to the Contacts page. Takes you to the HELP page. Takes you to the Credits page. Takes you to the Collections page. Takes you to the search page. Takes you to the Links page.

NOAA Photo Library Image - cgs00637

Magnetic observations at sea from the USC&GSS BACHE. While steaming in a circle, first to the right and then to the left, the ship is steadied successive ly on 8 or 16 equi-distant headings while the sun's magnetic bearing is observed with the standard compass and the dip and total intensity are determined with a Lloyd-Creak dip circle.

Image ID: cgs00637, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: United States Atlantic coast
Photo Date: 1916.
Credit: NOAA Central Library Historical Imagery

High Resolution Photo Available

Publication of the U.S. Department of Commerce, National Oceanic & Atmospheric Adminstration (NOAA),
NOAA Central Library
NOAA Privacy Policy | NOAA Disclaimer
Last Updated:
June 10, 2016