Hop-scotch to hare-and-hounds, conjuring to chemistry, rabbits to rowing — the complete Victorian repertoire of things for a boy to do, set down with rules and diagrams.
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Effects of Galvanism on a Magnet
If a galvanic current, or any electric current, be made to pass along a wire under which, and in a line with it, a compass is placed, it will be found that the needle will no longer point north and south but will take a direction nearly across the current, and point almost east and west.