ll of BY GEO. M. HOPKINS. remote from the magnet exhibits magnetism like that L the positive electrical impulses are generated upon one of the magnet pole of the magnet. The great development of electricity in recent years, side of the poles of the fixed magnet, and all the ne- The relation of… … Any one at all acquainted with electrical phenomena Phosphorescent. knows that a hardened steel bar surrounded by a coil The collection of the INDUCED CURRENT FROM INDUCED MAGNETISM. | of wire which is traversed by an electric current be- Greek alchemists found comes permanently magnetic. Itis…
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