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The studies of Metaphysics and Medicine science could have been chosen, more haphave more in common, both as to means and pily calculated than Medicine, to prepare ends, than may perhaps at first sight appear. such a mind for the prosecution of those John Locke and Thomas Sydenham,—the speculations which have immortalized his one the founder of our analytical philosophy name; the complicated and fugitive, and of mind, and the other of our practical med- often equivocal phenomena of disease, reicine,—were not only great personal friends, quiring in the observer a far greater proporbut were of essential use to each other in tion of discriminating sagacity than those of their respective departments; and we may Physics, strictly so called ; resembling, in safely affirm, that for much in the Essay on this respect, much more nearly, the phenomHuman Understanding, we are indebted to ena about which Metaphysics, Ethics, and its author's intimacy with Sydenham, “one Politics are conversant. of the master builders at this time in the Hartley, Mackintosh, and Brown, were commonwealth of learning," as Locke calls physicians; and we know that medicine was him, in company with "Boyle, Huygens, a favorite subject with Socrates, Aristotle, and the incomparable Mr. Newton:” And Bacon, Descartes, and Berkeley. We wish Sydenham, it is well known, in the third our young doctors kept more of the company edition of his “Observationes Medicæ,” ex- of these and such like men, and knew a little presses his deep obligation to Locke in his more of the laws of thought, of the nature dedicatory letter to their common friend Dr. and rules of evidence, of the general proceMapletoft, in these words :--"Nosti præte- dure of their own minds in the search after, rea, quam huic meæ methodo suffragantem the proof and the application of, what is true, habeam, qui eam intimius per omnia perspex- than, we fear, they generally do.* They erat, utrique nostrum conjunctissimum Dominum Johannem Lock; quo quidem viro, sive * Pinel states, with great precision, the necessity ingenio judicioque acri et subacto, sive etiam there is for physicians to make the mind of man, as antiquis (hoc est optimis) moribus, vix supe- de l'entendement humain, pourroit-elle être ignorée
well as his body, their especial study. “L'histoire riorem quenquam inter eos qui nunc sunt par le médecin, qui a non-seulement à décrire les homines repertum iri confido, paucissimos vesanies ou maladies morales, et à indiquer toutes certe pares.” Referring to this passage, leurs nuances, mais encore, qui a besoin de porter la when noticing the early training of this “in
logique la plus sévère pour éviter de donner de la
réalité à de termes abstraits pour procéder avec sagenium judiciumque acre el subactum,” Du
des idées simples à des idées complexes, et qui gald Stewart says, with great truth, “No a sans cesse sous ses yeux des écrits, où le défaut de
VOL XIX. NO. II.
might do so without knowing less of their to act as his own physician, on account of
In coming to this conclusion, we have been writer. This same John Locke was a man
dicted to medical and chemical researches. Le Clerc, in his Eloge upon Locke in the He kept the first regular journal of the Bibliotheque Choisie, (and in this he has been weather, and published it from time to time followed by all subsequent biographers,) in the Philosophical Transactions, and in states, that when a student at Christ Church, Boyle's History of the Air. He used in his Oxford, he devoted himself with great ear- observations a barometer, a thermometer, nestness to the study of Medicine, but that and a hygrometer. His letters to Boyle are he never practiced it as his profession, his full of experiments and speculations about chief object having been to qualify himself chemistry and medicine ; and in a journal
kept by him when traveling in France, is s'entendre, la séduction de l'esprit de système, et l'abus this remarkable entry : "M. Toinard prodes expressions vaques et indéterminées ont amené duced a large bottle of muscat; it was clear de milliers des volumes et des disputes intermina- when he set it on the table, but when the bles ?” — Méthodes d'Etudier en Médecine.
stopper was drawn a multitude of little bub*We suppose we shall soon arrive at that ex
It comes from this, that the inquisite nicely predicted by Mandeville, when our
cluded air had liberty to expand itself ;uroscope will enable us to “diagnose" in the product of a Sunday the religion, and in that of a query, whether this be air new generaled. weekday the politics, of our patient.
Take a bottle of fermenting liquor, and tie a