M. ISELIN is doubtless in the right; nothing would be more important than the combination of the two points he desires; but then nothing would be more difficult than the detaching them from the other parts not only of moral but medicinal education. To treat of this article apart, that is to say, to treat of it well, it would be necessary to establish a great number of principles, which would swell too much this little work, and which would, besides, be very foreign to it. Some general precepts, unconnected with the necessary principles and divisions, would not only be of little use, but might even become dangerous; so that it is better to refer such a treatise to the making part of a more considerable one, upon the means of forming a good constitution, and of giving a youth a firmly established health; a matter which, though it has been handled by very able authors, is, hitherto, far, very far from being exhausted; and upon which there remain a multitude of extremely important things to be added, as well as upon the disorders incident to that season of life. So that, though it be against my inclination, I will not here touch upon this article. All that I can say is, that idleness, inactivity, too long lying a-bed, too soft a bed, a rich, aromatic, salt, or vinous diet, dangerous or suspicious acquaintance, licentious works, being the likeliest causes of seduction into those excesses, they cannot be too carefully avoided. Diet especially is of extreme importance, and there is not attention enough had to that particular. Those who educate youth, ought to have ever present to them that pathetic observation of St. JEROM: “The forges of Vulcan, the internals of the Vesuvius and the Mount Olympus do not burn with more flames, than youth pampered with high meats, and drenched with wines.” MENJOT, one of LEWIS the XIVth’s Physicians, from about the middle to the end of the last century, mentions women, that an excess of _hippocras_ (spiced wine) threw into a venereal extasy. The use of wine and flesh-meats is so much the more pernicious, for that while they augment the force of the stimulations of loose desires, they weaken at the same time that of reason, which ought to resist them. “Wine and animal food dull the soul,” says PLUTARCH, in his treatise _On the eating of flesh-meats_, a work which ought to be generally perused. The most ancient Physicians had already known the influence of regimen over the morals; they had the idea of a moral medicinal-course; and GALEN has left us upon that matter a small work, which is, perhaps, the best upon that subject hitherto extant. Conviction of the reality of his promise cannot but follow its perusal.