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 233
ransmitting the battery current, its north pole (inthis hemisphere) immediately inclines downwardstowards the earth, in the same manner as that of thedipping needle. The momentum thus acquiredcarries it past the line of the dip into a vertical direc-tion. As soon as it reaches this position, the… … immuiflMjijiHimiBflirafflBnjiifflMifflnRmiffliD magnetic MAGNET REVOLVING IN A COIL. 217 SO supported as to revolve by the earths action ina horizontal plane, instead of a vertical one. In this Fig. 150. ifliBi
