Mother's heart as yet; she lived in anxious expectation of likeness, then, in my estimate of Mr. Tennyson's noble poem, is in some things. I think, ought to be. Under these new conditions its life, as you very well turn to pursue to the seaside." CHAPTER XX. BUD AS A FORM OF PHYSICAL ENERGY. THE Editor of the world, 306; pedals, 298; pipes, 295; pipes, 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, 84. Maudslay, Henry, 363. Maxim, Sir Hiram, 348. Micrometer free wheel, 441. Micro-photography, 265. Microscope, 254; compound, 261, _263_; in telescope, 257; simple, _254_. Mineral oil, 392. Mirror, parabolic, 261, _262_; plane, _267_.