Velocities, great, how produced, [203]

Velocities, great, how arrested, [204]

Vibration of sounding bodies, [249]

Vision, distinct, what necessary to, [354]

Vision, why single, [357]

Vision, why erect, [356]

Visual angle, [348]

Voice, how produced, [265]

Voltaic electricity, [394]

Volta's pile, [395]