Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity (1854)
Davis, Daniel · Boston : Palmer and Hall · leaf 164
able length, theend which is repelled will be at such a distance fromthe influence of the magnet, that its repulsion will beoverpowered by the attraction of the extremity whichis near it. If, however, the piece is very short, sothat the repelled pole is brought near to the magnet,the repulsion is… … 148 DAVISS MANUAL. them nearly equally to the influence of the magnet,the attraction becomes scarcely perceptible. Thus,let M (Fig. 98) be the south pole of a bar or horse- Fig. 98.
