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TRANSIENT INDUCTION 1619
THE OPERATION ON THE STANDARD COMPASS 2428
adjust on east adjust on north adjusting compasses affect the compass athwartship azimuth beams blue polarity box binnacle Cause of Deviation change of latitude Co-efficient compass adjustment compass card compass needle compass record compass under treatment compensated correct magnetic bearing course deck degrees Deviation Cards DIPPING NEEDLE distant object due to vertical east or west easterly deviation effect hard steel magnet head while building heeling error horizontal iron induced instrument iron ship longitude lubber line magnetic equator magnetic force magnetic meridian means natural deviation navigator north end north magnetic pole north or south pelorus pillar placed Plate position Puget Sound Quadrantal Correctors quadrantal deviation quadrantal points Red polarity retentive magnetism semi-circular deviation ship's compass ship's head east shore compass side sight vane spirit level Standard compass steamer steering compass Testing the Lubber tion vertical bar vertical iron vertical magnet vertical soft iron westerly wooden