Treasury Department. United States Coast and Geodetic Survey. Special Publication No. 1. California, Bay of San Francisco. Magnetic Ranges for Determining the Deviation of the Compass, with Short Explanations of How to Find the Deviation and Error of the Compass. These Ranges were Determined by the U.S. Coast Guard Steamer "McArthur," Lieut. J.M. Helm, U.S.N. Commanding. Arranged and Compiled by Lieut. J.C. Gillmore, United States Navy, Assistant, U.S. Coast and Geodetic Survey. Washington: Government Printing Office. 1898.
pub_title
Treasury Department. United States Coast and Geodetic Survey. Special Publication No. 1. California, Bay of San Francisco. Magnetic Ranges for Determining the Deviation of the Compass, with Short Explanations of How to Find the Deviation and Error of the Compass. These Ranges were Determined by the U.S. Coast Guard Steamer "McArthur," Lieut. J.M. Helm, U.S.N. Commanding. Arranged and Compiled by Lieut. J.C. Gillmore, United States Navy, Assistant, U.S. Coast and Geodetic Survey. Washington: Government Printing Office. 1898.
Pub Title
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