To his age and great learning, he should be blest with a temper and a patience, willing to accommodate itself to the imperfections of the slowest and meanest capacities. Such a one in former days Mr. Hartlib appears to have been, and such in our days I take Mr. Grierson to be; but our friend, you know, unhappily has other engagements. I do not demand a consummate grammarian; but he must be a thorough master of vernacular orthography, with an insight into the accentualities and punctualities of modern Saxon, or English. He must be competently instructed (or how shall he instruct you?) in the tetralogy, or first four rules, upon which not only arithmetic, but geometry, and the pure mathematics themselves, are grounded. I do not require that he should have measured the globe with Cook, or Ortelius, but it is desirable that he should have a general knowledge (I do not mean a very nice or pedantic one) of the great division of the earth into four parts, so as to teach you readily to name the quarters. He must have a genius capable in some degree of soaring to the upper element, to deduce from thence the not much dissimilar computation of the cardinal points, or hinges, upon which those invisible phenomena, which naturalists agree to term _winds_, do perpetually shift and turn. He must instruct you, in imitation of the old Orphic fragments (the mention of which has possibly escaped you), in numeric and harmonious responses, to deliver the number of solar revolutions, within which each of the twelve periods, into which the _Annus Vulgaris_, or common year, is divided, doth usually complete and terminate itself. The intercalaries, and other subtle problems, he will do well to omit, till riper years, and course of study, shall have rendered you more capable thereof. He must be capable of embracing all history, so as from the countless myriads of individual men, who have peopled this globe of earth--_for it is a globe_--by comparison of their respective births, lives, deaths, fortunes, conduct, prowess, &c. to pronounce, and teach you to pronounce, dogmatically and catechetically, who was the richest, who was the strongest, who was the wisest, who was the meekest man, that ever lived; to the facilitation of which solution, you will readily conceive, a smattering of biography would in no inconsiderable degree conduce. Leaving the dialects of men (in one of which I shall take leave to suppose you by this time at least superficially instituted), you will learn to ascend with him to the contemplation of that unarticulated language, which was before the written tongue; and, with the aid of the elder Phrygian or Æsopic key, to interpret the sounds by which the animal tribes communicate their minds--evolving moral instruction with delight from the dialogue of cocks, dogs, and foxes. Or marrying theology with verse, from whose mixture a beautiful and healthy offspring may be expected, in your own native accents (but purified) you will keep time together to the