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SI R I S:

A CHAIN of PHILOSOPHICAL REFLEXIONS

AND

INQUIRIES

Concerning the Virtues of

TAR WAT E R,

And divers other Subjects connected together

and arising one from another.

BY THE

Right Rev. Dr. GEORGE BERKELEY,

Lord Bishop of CLOYNE,
And Author of The Minute Philosopher.

As we have opportunity, let us do good unto all men. Gal. vi. 10.

opus, hoc ftudium, parvi properemus et ampli. Hor.

Hoc opus,

The SECOND EDITION, Improved and Corrected by the AUTHOR.

DUBLIN Printed,

LONDON Re-printed, For W. INNYS, and C. Hitch, in Pater-nofter-row; and C. Davis in Holbourn. MDCCXLIV.

[Price Two Shillin gs.]

.

INQUIRIES, &C.

be the writing

A CHAIN of PHILOSOPHICAL REFLEXIONS

AND OR INTRODUCTION to the following piece I assure the reader, that nothing

could, in my present situation, have init, but a firm belief that it would prove a valuable present to the public. What entertainment foever the reasoning or notional part may afford the mind, I will venture to say, the other part seemeth so surely calculated to do good to the body, that both must be gainers. For if the lute be not well tuned, the musician fails of his harmony. And in our present state, the operations of the mind, so far depend on the right tone or good condition of it's instrument, that any thing which greatly contributes to preserve or recover the health of the body, is well worth the attention of the mind. These confiderations have moved me to communicate to the public the salutary virtues of tar-water; to which I thought myself indispensably obliged, by the duty every man owes to mankind. And, as effects are linked with their causes, my thoughts on this low, but useful theme led to far

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ther

ther inquiries, and those on to others remote, perhaps, and speculative, but, I hope, not altogether useless or unentertaining.

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N certain parts of America, tar-water is

made by putting a quart of cold water to a quart of tar, and stirring them well together in a vessel, which is left standing till the car finks to the bottom. A glass of clear water being poured off for a draught is replaced by the same quantity of fresh water, the vefsel being shaken and left to stand as before. And this is repeated for every glais, so long as the tir continuěs to impregnate the water sufficiently, which will appear by the smell and taste. But as this method-produceth tarWater of different degrees of strength, I chuse to make it in the following manner : Pour a gallon of cold water on a quart of tar, and stir and mix them thoroughly with a ladle or Hat stick for the fpace of three or four minutes, after which the vefsel must stand eight and forty hours that the tar may have time to subfide; when the clear water is to be poured off and kept for use, no more being made from the fame tår, which may still serve for common purposes. i 2 This.cold infusion of tar hath been used in fome of our colonies, as a preservative or preparative against the fmall-pox, which foreign practice induced me to try it in my own neighbourhood, when the fmall-pox raged with great violence. And the trial fully answered my expectation: all those, within my knowledge, who took the tar-water having either escaped that distemper, or had ie very favourably. In one family there was a remarkable instance of seven children, who came alf very well through the finall-pox, except one young

child

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