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Show LIGHTHOUSE LAMPS, (From Scientific American.) The use of olectrlce lights for lighthouses light-houses presents certain 'disadvantages I Is therefore with some Interest that we follow the course of some experiments exper-iments in France on the use of a nev kind of Incandescent light 'for lighthouse light-house purpose. The lamp in question has a number of filaments mounted somewhat after the fashion of the fibers of an Incandescent gas mantle. In this way a very strong Might Is secured, se-cured, which, moreover, has the desirable de-sirable property of being very uniform uni-form in all parts of the circumference. According tq recent trials the.nqw type of lamp gave twenty times as much light as a "Welsbach burner and required very little attention'. Tho lamp is particularly adapted for shore lighthouses, which are easily placed In communication with electric light mains. |