Aether, and propagated through matter only. Sound-waves are matter-waves, not ether-waves. This can be more tolerable there than in New York.
205. Locomotive, electric, 178; advantages of, 84. Maudslay, Henry, 363. Maxim, Sir Hiram, 348. Micrometer free wheel, 441. Micro-photography, 265. Microscope, 254; compound, 261, _263_; in telescope.