Magnetic Compass Deviation and Correction table runner Papua New Guinea - North

Papua New Guinea - North East Coast - Woodlark Island to Trobriand Islands Including Egum Atoll  1:150 000

The relation of the components P

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Edition 7 Aug 2020

Magnetic Compass Deviation and Correction table runner Papua New Guinea - NorthIn addition to dealing with the properties of magnets and the earths magnetism, three chapters are devoted to the magnetism of the ship, the third explaining in detail the reason for, and composition of, the nine rods. The relation of the components P, Q and R are the rods to the various co efficient are fully explained. The principle of the deflator and a discussion of the limits of accuracy are also included, together with a great deal of hitherto