1. On a method of detecting the phases of vibration in the air surrounding a sounding body; and thereby measuring directly in the vibrating air the length of its waves and exploring the form of its wave-surface Author(s): Mayer, Alfred M. (Alfred Marshall), 1836-1897, author Publication: [New Haven, Connecticut] : [publisher not identified], [1872?] Subject(s): SoundVibrationAcoustics