A practical manual of the compass :
a short treatise on the errors of the magnetic compass, with the methods employed in the U.S. navy for compensating the deviations, and a description of service instruments, including the gyro-compass; prepared with the approval of the Bureau of navigation, Navy department, Annapolis Md., The United States Naval institute, 1916.
|Main Author:||Laning, Harris, 1873-1941.|
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|Item Link||Original Source|
||University of California|