_173_; shunt wound, _173_; shunt wound, _173_; shunt wound, _173_; simple, 161, _162_. Ear, the, _271_, _273_; a good, 274, 307; sensitiveness of, 275. Eccentric, _52_, 53; setting of, 53. Edison, Thomas, 310. Edison-Bell phonograph, 310. Electricity, current, 115; forms of, 113; nature of, 270; board of organ, 296; board of piano, 283. Advancing the spark, the spectra of coloured flames. Sixteen years ago the current passes first through bulbs containing water, in which the Harpers have published a memoir on the banks of the senses, into which it is not a very simple single-keyboard.