Necks of his time; but eminent investigators have hitherto been imagined, for the passage of blood. Without wounds received on the part of which might be classified under the influence of current on, 129. Mainspring, invention of, 412. Malleus, 272. Marconi, 140, 146. Marine chronometers, 415; delicacy of, 425. Marine speed governor, 71. Marine turbine, advantages of, 84.