it passes over the plain Superficies of a Body that is hard and resisting.
Wherefore the smooth Top of the Water (by reason of its yielding to the Arch'd Air, and gently arising again with a kind of Resurge, like to Elasticity, tho' it be not so, by which Resurge it quickens and hastens the motion of the Air rowling over it, and by its yielding preserves it in its Arch'd Cycloidical or Elliptical Figure) the smooth Top of the Water, I say, for these Reasons, and by these Means, conveys a Sound more entire, and to a greater distance than the plain Surface of a piece of Ground, a Wall, or any other Solid Body whatever, can do.
As for the Speaking Trumpet, by which a Voice may be convey'd to a considerable distance, I refer its consideration to that of Refracted Sounds, or Refracted Audition.
Thus much of the Improvements of Hearing, that respect its Object, which is Sound.
- The Organ