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 246
vertical positionby a very slight force, their upper portions rockingtowards or away from each other, without requiringany motion of the points of support. 365. Cups O and E, being united by a copperwire, connect cups D and F with the galvanic bat-tery. The current will now traverse A a,nd B… … 230 DA viss MANUAL. ence with their oscillations. The same effect isproduced by uniting D with F, and connecting Oand E with the battery. If a powerful current isemployed, the wires still attract each other whenseparated to a considerable distance, by moving thepoints which rest in the mercury to…
