a rude and unartificial Instrument) does such great feats, what might be done with one compos'd according to the Rules of Art? whose make should comply with the Laws of Sonorous Motion (which that does not) and therefore not so much Refract, as to alter and confound the Tone of the Voice and Words (as that somewhat does.)
Now of what use such an Instrument might be for speaking clearly and articulately at a distance (and that without altering the Tone of the Voice) whether it be at Sea or at Land (but especially at Sea in tempestuous Weather and in the Night) is obvious to any Man to conceive.
- As Instruments have been invented to help the Eye, So likewise are there some, and more such there may be, for the Ear.
For,
- As Spectacles and other Glasses are made to help the Purblind and weak Eyes, to see at any competent distance: So there are Otacousticks (and better may be made) to help weak