. Edinburgh New Philosophical Journal . The hole at "A," as it appears on the under surface of the lead ; carefully drawn full size by Mr J. M. Corner, wood-engraver. copiously filled, and might have produced dangerous effects, had it not been furnished at either end with large copper plates in close proximity to many pronged conductors ending in wet earth, which led away innocuously the greater part of the charge. Enough however still remained to do some singular damage to the elec- trically controlled clocks at either end of the line. Thus, the members of one of the bundles of perm
. Edinburgh New Philosophical Journal . The hole at "A," as it appears on the under surface of the lead ; carefully drawn full size by Mr J. M. Corner, wood-engraver. copiously filled, and might have produced dangerous effects, had it not been furnished at either end with large copper plates in close proximity to many pronged conductors ending in wet earth, which led away innocuously the greater part of the charge. Enough however still remained to do some singular damage to the elec- trically controlled clocks at either end of the line. Thus, the members of one of the bundles of permanent magnets, near the pendulum-bob of the Castle clock, had their poles changed and their new attraction made rather stronger than their old; the members of a similar bundle in the Observatory window-clock had their poles partially changed ; and in the interior of the Normal Mean Time clock one of the gold contact points was partially fused, and spattered on its steel spring, which was blued at that part as though by heat. The gold contact point thus treated, it will be understood, was
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Keywords: ., bookcentury1800, bookcollectionbiod, bookdecade1860, bookyear1863
