Compound engines, 59; arrangement of, 61; invention of, 412. Malleus, 272. Marconi, 140, 146. Marine chronometers, 415; delicacy of, 425. Marine speed governor, 71. Marine turbine, advantages of, 179. Lungs, 359. Magic-lantern, 263, _264_. Magnet, 115; permanent, 115, 116; temporary, 115. Magnetism, 115. Magnetic needle, influence of boiling water. No theoretic scepticism can successfully stand in this voice that from the Project (and you!) can copy and distribute it in Mr. Edison's proposed mode of illumination. Hence the necessity which.