Uttmark's guide to the United States local inspectors examination for masters and mates of ocean going steam and sailing ships (1919)
Uttmark, Fritz E · [New York] The Author · leaf 53
oEviATioNierwesiEterVAEIAtlON xvxfiaytstvt UTTMARKS GUIDE … Fig. 45. When the North end ofthe compass needle pointsto the left of the magneticmeridian the deviationis called Westerly and whenthe same end of the needlepoints to the right of the mag-netic meridian the deviationis called Easterly. It differsin amount and name accord-ing to the course the ship…
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