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 52
Fig. 44. 24 DEFINITIONS Diagrams ShowingVariation and Deviation T C VARlAltON ISWESTERt TOTAUIBROR d*tAaT£iay … DEVIATION ;5*eAi7ERl. C T TOTAL ERROR OWCiTCIUY.VAJUATION 25 *W£3TEIUT.
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