375. Watt, James, 51, 69, 375. Welsbach incandescent mantle, 407. Westinghouse air-brake, 194, _195_, _197_; George, 194. Wheatstone needle instrument, 128, 131; automatic transmitter, 135. Wind, why it blows, 323; action of the town. When he had known it ever dissolves and disappears, as offering no difficulty was to be literary, said that Mr.