The Magnetism of Iron Vessels: With a Short Treatise on Terrestrial Magnetism

action axis azimuth brass Brevet center line central line circle cloth coefficients column Compass Committee curve declinometer deflecting magnet determined Dip Circle duced earth's force edition engravings entered equator experiments hard iron heeling error horizontal force Hypsometry Illustrated inches inertia ring iron vessel magnet box magnetic bearing magnetic latitude magnetic meridian magnetic moment magnetic poles Magnetometer Manual marked end mean method minutes of arc Navigation needle needle points netic north end NOSTRAND'S PUBLICATIONS number of vibrations observations pass permanent magnetism placed plane Port of center position Prof quadrantal deviation read and record rection right angles scale divisions semicircular deviation ship swings ship's force ship's head side soft iron south end standard compass Steam Engine steel suspended magnet swings telescope temperature theodolite tion Trans turn U. S. Military Academy U. S. Navy variation vertical West wood cuts