The magician's own book, or The whole art of conjuring (1862)
Arnold, George, 1834-1865, Cahill, Frank · New York, Dick & Fitzgerald · leaf 140
me length of time : if a metal be of ahard texture like steel, it retains the magnetic principlepermanently ; but if soft, it loses the power as soon as sep-erated from*the magnet. The metals thus prepared, acquirethe same directive and attractive power as the loadstone ornatural magnet, and are… … EXPERIMENTS IN ELECTRICITY.
Magic tricks
Internet Archive · University of Pittsburgh Library · Public Domain Mark 1.0. Free to use for anything.
