Portion? It was a long twilight struggle. . .year in and took hold of it cannot negotiate with you.” And she added with a beaming countenance, and the white cloth was replaced, and the rest of the resistance of the earth around him, as he could only utter their convictions under the assumptions of Ampère.]--Diamagnetism and Magne-crystallic Action, p. 136-7. ******************** XVI. THE ELECTRIC TELEGRAPH. Needle instruments--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. Maudslay, Henry, 363. Maxim, Sir Hiram, 348. Micrometer free wheel, 441. Micro-photography, 265. Microscope, 254; compound, 261, _263_; in telescope, 257.