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ON SOUND IN GENERAL AND THE MODE OF ITS TRANSMISSION.
Sensation of Sound, and its cause, § 1—Connexion of Sound with motion, § 2—Velocity of Sound, § 3—Stationary media of Sound, § 4—Motion of sea-waves, § 5—Description of a wave, § 6—Length, amplitude and form of wave, § 7—Water-waves, § 8—Waves due to transverse vibrations, § 9—Periodic vibrations, § 10—Form of wave and mode of vibration, §§ 11, 12, 13— Wave on the surface of a field of standing corn, § 14—Longitudinal vibrations, §§ 15, 16—Condensation and rarefaction, § 17—Associated wave, § 18—Law of pendulum-vibration, § 19—Pressure and density of air; Mariotte's law, § 20—Transmission of sonorous waves along a tube of uniform bore, § 21— Unconstrained motion of Sound-waves, § 22—Musical and non-musical sounds, § 23. pp. 1—50
ON LOUDNESS AND PITCH.
Three elements of a musical sound, loudness, pitch and quality, § 24—Loudness and extent of vibration, § 25—Pitch and rapidity of vibration; the Syren; continuity of pitch, §§ 26, 27—Measure of pitch; vibration-numbers, § 28—Limits of musical sounds § 29—Relative pitch; intervals, § 30—Tonic intervals of the Major scale; concords and discords, § 31—Additional notes required for the Minor scale, 32—Measure of intervals, § 33— Vibration-fractions, § 34—Table of vibration-fractions for the tonic intervals of the Major and Minor scales, § 35—Calculation of the vibration-numbers of all the notes in a scale from the vibration-number of its tonic, § 36. pp. 51—70