Admiralty Manual for the Deviations of the Compass. Originally edited in 1862 by F. J. Evans ... and Archibald Smith ... Sixth edition. Published by order of ... the Admiralty. [With plates
A navigation handbook issued by the British Admiralty in 1893, the sixth edition of the compass-deviation manual first edited in 1862 by F. J. Evans and Archibald Smith, written for naval officers and ship's compass adjusters. The figures are line diagrams of circles, chords, tangents and lettered points on compass roses, usable as geometric motifs, technical ornament, or endpaper patterning.
