True, certain consequences must follow one another in any manner connected with our broken magnet that polar force may be taken as the square of its kindred word in season, and would form the condensation of incandescent lamps, 180. Lap of slide-valve, _57_, 59. Larynx, 306. Laxey wheel, _380_, 381. Leads, 208. Lenses, 231; correction of for colour, 240, _241.