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and secured in a vessel； while hot； from the sunshine。 If there seem anything remarkable in the fact of such astonishing properties being developed by this process； it must be from our short…sightedness； for common salt and charcoal develop powers quite as marvellous after a certain number of thumps； stirs； and shakes； from the hands of modern workers of miracles。 In fact the Unguentum Armarium and Sympathetic Powder resemble some more recent prescriptions； the latter consisting in an infinite dilution of the common dose in which remedies are given； and the two former in an infinite dilution of the common distance at which they are applied。
Whether philosophers； and more especially metaphysicians； have any peculiar tendency to dabble in drugs and dose themselves with physic； is a question which might suggest itself to the reader of their biographies。
When Bishop Berkeley visited the illustrious Malebranche at Paris； he found him in his cell； cooking in a small pipkin a medicine for an inflammation of the lungs； from which he was suffering； and the disease； being unfortunately aggravated by the vehemence of their discussion； or the contents of the pipkin； carried him off in the course of a few days。 Berkeley himself afforded a remarkable illustration of a truth which has long been known to the members of one of the learned professions； namely； that no amount of talent； or of acquirements in other departments； can rescue from lamentable folly those who； without something of the requisite preparation； undertake to experiment with nostrums upon themselves and their neighbors。 The exalted character of Berkeley is thus drawn by Sir James Mackintosh： Ancient learning； exact science； polished society； modern literature； and the fine arts； contributed to adorn and enrich the mind of this accomplished man。 All his contemporaries agreed with the satirist in ascribing
〃'To Berkeley every virtue under heaven。'
〃Even the discerning； fastidious； and turbulent Atterbury said； after an interview with him； 'So much understanding； so much knowledge； so much innocence； and such humility； I did not think had been the portion of any but angels； till I saw this gentleman。'〃
But among the writings of this great and good man is an Essay of the most curious character； illustrating his weakness upon the point in question； and entitled； 〃Siris； a Chain of Philosophical Reflections and Inquiries concerning the Virtues of TAR WATER； and divers other Subjects；〃an essay which begins with a recipe for his favorite fluid； and slides by gentle gradations into an examination of the sublimest doctrines of Plato。 To show how far a man of honesty and benevolence； and with a mind of singular acuteness and depth； may be run away with by a favorite notion on a subject which his habits and education do not fit him to investigate； I shall give a short account of this Essay； merely stating that as all the supposed virtues of Tar Water； made public in successive editions of his treatise by so illustrious an author； have not saved it from neglect and disgrace； it may be fairly assumed that they were mainly imaginary。
The bishop； as is usual in such cases； speaks of himself as indispensably obliged； by the duty he owes to mankind； to make his experience public。 Now this was by no means evident； nor does it follow in general； that because a man has formed a favorable opinion of a person or a thing he has not the proper means of thoroughly understanding； he shall be bound to print it； and thus give currency to his impressions； which may be erroneous； and therefore injurious。 He would have done much better to have laid his impressions before some experienced physicians and surgeons； such as Dr。 Mead and Mr。 Cheselden； to have asked them to try his experiment over again； and have been guided by their answers。 But the good bishop got excited； he pleased himself with the thought that he had discovered a great panacea； and having once tasted the bewitching cup of self…quackery； like many before and since his time； he was so infatuated with the draught that he would insist on pouring it down the throats of his neighbors and all mankind。
The precious fluid was made by stirring a gallon of water with a quart of tar； leaving it forty…eight hours； and pouring off the clear water。 Such was the specific which the great metaphysician recommended for averting and curing all manner of diseases。 It was； if he might be believed； a preventive of the small…pox； and of great use in the course of the disease。 It was a cure for impurities of the blood； coughs； pleurisy； peripneumony； erysipelas； asthma； indigestion； carchexia； hysterics； dropsy； mortification； scurvy； and hypochondria。 It was of great use in gout and fevers； and was an excellent preservative of the teeth and gums； answered all the purpose of Elixir Proprietatis； Stoughton's drops； diet drinks； and mineral waters； was particularly to be recommended to sea…faring persons； ladies； and men of studious and sedentary lives； could never be taken too long； but； on the contrary； produced advantages which sometimes did not begin to show themselves for two or three months。
〃From my representing Tar Water as good for so many things；〃 says Berkeley； 〃some perhaps may conclude it is good for nothing。 But charity obligeth me to say what I know； and what I think； however it may be taken。 Men may censure and object as they please； but I appeal to time and experiment。 Effects misimputed； cases wrong told； circumstances overlooked； perhaps； too； prejudices and partialities against truth； may for a time prevail and keep her at the bottom of her well； from whence nevertheless she emergeth sooner or later； and strikes the eyes of all who do not keep them shut。〃 I cannot resist the temptation of illustrating the bishop's belief in the wonderful powers of his remedy； by a few sentences from different parts of his essay。 〃The hardness of stubbed vulgar constitutions renders them insensible of a thousand things that fret and gall those delicate people； who； as if their skin was peeled off； feel to the quick everything that touches them。 The tender nerves and low spirits of such poor creatures would be much relieved by the use of Tar Water； which might prolong and cheer their lives。〃 〃It ＇the Tar Water＇ may be made stronger for brute beasts； as horses； in whose disorders I have found it very useful。〃 〃 This same water will also give charitable relief to the ladies； who often want it more than the parish poor； being many of them never able to make a good meal； and sitting pale； puny； and forbidden； like ghosts； at their own table； victims of vapors and indigestion。〃 It does not appear among the virtues of Tar Water that 〃children cried for it；〃 as for some of our modern remedies； but the bishop says； 〃I have known children take it for above six months together with great benefit； and without any inconvenience； and after long and repeated experience I do esteem it a most excellent diet drink； fitted to all seasons and ages。〃 After mentioning its usefulness in febrile complaints； he says： 〃I have had all this confirmed by my own experience in the late sickly season of the year one thousand seven hundred and forty…o