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BY ANSELM BAYLY, LL.D.
SUB-DEAN OF HIS MAJESTY'S CHAPELS ROYAL.

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THE RIGHT HONORABLE

WILLIAM PITT,

CHANCELLOR OF THE EXCHEQUER AND FIRST LORD OF THE TREASURY.

SIR,

WHILE Mufick foftens the pas

fions, and Poetry illumines the understanding at ease and in filence, Oratory ruling over both, calls them forth to action on the most arduous and critical junctures.

Oratory with the tongue of Demofthenes defended Athens against the invasions of Philip; by that of Cicero, it delivered Rome from the confpiracy of Cataline, and in You, Sir, fteps forward with fuperior vigour to stem the tide of Opposition,

and

and fave the SOVEREIGN and his People from unprecedented attempts, dangerous to the peace of the community, and fubverfive of the Conftitution in Church and State.

Joining therefore with the nation at large, in earnest Prayer for the speedy restoration of HEALTH to the KING happily refuming his authority, and in ardent wishes that you may continue to discharge the high trust and duty of a Statefman, with that uncommon, unheard of and unrecorded wifdom and integrity you have hitherto done, in diffusing univerfal prosperity through the whole British Empire,

I have the honor to. fubfcribe myself,
With all due refpect and admiration,,
SIR,

Whiteball, December 22, 1788.

Your most humble

and most obedient fervant,

ANSELM BAYLY.

THE THEORY OF SOUNDS.

In pursuing this defign, the first and leading points of inquiry will be into the nature of founds single, fucceffive and con`junctive.

of fingle Sounds.

To inquire how found is propagated by the air, whether in ftraight lines or circular, by vibration or in undulation, might be matter of amusement rather than of utility; but a confideration of sounds themselves, and their difference, is very neceffary and of great importance, though perhaps little entertaining to those who have not attended to them: Sounds, tones, and voices, are of two kinds, articulate and inarticulate.

Inarticulate founds, in contradiftinction to noises and clangors, fuch as thofe of wind, water, thunder, fcreaming, howlings, may be produced agreeably by certain percuffions on a glass, drum, bell, or by air through tubes and every kind of wind instruments.

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