The works of George Berkeley, D.D. late Bishop of Cloyne in Ireland. To which is added, an account of his life [by J. Stock] and several of his letters to Thomas Prior, Esq., Dean Gervais, and Mr. Pope, etc

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A CHA IN OF

PHILOSOPHICA L REFLECTION S

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How much to be talen at a time. ω long to be continue How made palatabis.

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alon breween the speciso qualities of vegetabis Dices and coloura. 16sAsne subtile piris, Me disingu ing principis of ali vegetabies. III

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M accounting for phaenomena, Ather θ attraction and repoton, or 6 elasio aether, without the presence of an incorporeat agent. 23 I, 238, 2 6, 2 9, 29 , 297 Attraction in fome degree discovered θ Galilaei. 2 sPh nomena are but appearances in the sul, noe to be accounted for Uon mechanical principies. 2s I, 252, 3IO

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nothing could, in my present siluation, have induced me to be at thepains of writing it, but a firm belles that it would prove a valvabie present to the public. What entertain ment foe ver the rea ning or notionalpari may afford the mind, I will venture to say, the other part seemethso surely calculated to do good to the body, that both must be gainers. For is the lute be not weli tuned, the musician fatis of his harmony. And in our present st ate, the operations of the mind, se far depend onthe right tone or good condition os iis instrument, that any thing whicli greatly contributes to preserve or recover the health of the body, is wellworth the attentiori of the mind. These considerations have moved meto communicate to the public the salutary viriues of tar water ; to whicli I thought myself indispensably obliged, by the duty every man o es tomani ind. And, as effecis are linked with their causes, my thoughis onthis low but useful theme led to farther inquiries, and those on to others remote, perhaps, and speculative, but, I hope, not altogether uselesi or

I. In certain paris of America, tar Water is made by putting a quartos colit water to a quart of tar, and stirring them weli together in a vesset,

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Siris.

v I mahe this water stronger, than that sirst prescribed in SIRIs, having mund on more generat experierice, that sive or si x minutes stirring, When the water is caresully clearedand linamed, agrees With most stomaclis.

distemper.

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Siris.

distemper. The generat rule sor taking it is, about half a pini night and

morning on an empty stomach, Whicli quantity may be varied, accordingto the casu and age of the patient, provided it he alWays taken on an empty stomach, and about two hours besere or after a meat. For chil-dren and squeamissi persons it may be made wealier or given litile and osten, more water or lese stirring mahes it wealier, as test v ater or more stirring mahes it stronger. It mould not be lighter than French, nordeeper coloured than Spanim white wine; is a spirit be not very sensi blyperceived on drinhing, either the tar must have been bad or atready used, or the tar water caretessy made or hept. Particular experience wili best meis how much and hois strong the stomach can bear, and what are theproperest times sor taking it. I apprehend no danger from excess in theuse of this medicine. . It stemed probabie, that a medicine of sucti essicacy in a distemper attended with so many purulent ulcers, might be also usesul in other laut-nesies of the hlood, accordingly Ι tried it on severat persons insected with

cured. Encouraged by these successes, Ι ventu red to advise it in the ulest distempers, wherein it proved much more successisl than salivations and wood drinlis had done. s. Having tried it in a great variety of cases, I sound it succeeded be-yond my hopes; in a tedious and painful ulceration of the bo eis, in aconsumptive cough and as appeared by expectoraled pus an ulcer in thelungs; in a pleurisy and perii neumony. And when a person who sor me years had been subject to erysipelatous severs, perceived the usual fore-running symptoms to come on. I ad vised her to drinli tar water, whicli prevented the erysipelas.

6. I

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Siris.

6. I never lineN any thing so good for the stomach as tar watere it cures indigestion and gives a good appetite. It is an excellent medicine in an asthma. It imparis a Lindly warmili and qui cli circulation to the juices Without heatin g, and is there re usefui, not only as a pectoral and balsamic, hut also as a powerfui and sese deobstruent in cachestic and hysteric cases. As it is both healing and diu retic, it is very good sor the gravet. I belleve it to be of great use in a dropsy, having known it cure a very bad an arsaca in a person Whose thirst, though very extraordinary, Wasin a mort time removed by the drinhing of tar Walen ' The uis inest of this medicine in inflammatory cases is evident,from What has been atre ady observel . And yet se me perhaps may su Dpect that, as the tar itself is sulphureotas, tar water must be of a hol and inflaming nature. But it is to he noted that ali balsams contain an acidspirit, Whicli is in truth a volatile sali. Water is a menstruum stat dissolves alb soris of salis, and draws them stom their subjecis. Tar, there- fore, heing a balsam, iis salutary acid is extracted by mater, which yet is incapable os disibi ving iis grosi resinous Parts, whose Proper menstruum is spirit of wine. There re tar water, not bcing impregnated with resin may be sesely used in inflammatory cases: and in fact it hath been. Dund an admirabie febrifuge, at once the asest cooler and cordial. 8. The volatile salis separated by in susion stom tar, may be supposedio contain iis specific virtues. Mr. Boyle and othen lateri chymists are agreed, that fixed salts are much the fame in . ali hodies. Eut it is wellknown that volatile salis do greatly dister, and the easter they are separated Dom the subjeci, the more do they possest of iis specific qualities . Now the most eas' separation is by infusion of tar in cold water, which