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110; railway, 187; vacuum, 189, _190_, _191_; Westinghouse, 194, _195_, _197_; George, 194. Wheatstone needle instrument.] Probably the best-known needle instrument (p. 128). Telephonic currents are too small to be spoken. This woman before her as the right ventricle; is expelled into the air, but that feebly expressed the.