From THE PREFACE. THE short essay here offered to the Reader's Perusal, is intended by the Author, to be a Help, to him in the Choice of Books, which are worthy of his Notice in the several Subjects they treat of. Something of this Sort seems to have been long wanted, and the prodigious increase of Books, within these last fifty Years, makes it more necessary to distinguish those Writers, who have with Success, by their Merit, obtained a valuable Character, from those, who have merely by Necessity, or from lucrative Views only, commenced Authors, and taxed the Publick at too dear a Rate, for their trifling and ignorant Performances. The Author is far from offering his Tract as a compleat Work, or a faultless Performance, but he believes, (short as it is, ) it may rather be redundant in Authors, than any Way deficient in pointing out those of Merit. The Heads on which he has been shortest, are Divinity, Physick, Law, Mathematicks, Astronomy, Gardening, Heraldry, and other Arts; but, that those who apply themselves to any of these particular Studies, (the three first of which have Writers in Abundance, ) may know where to find a fuller Account of the Authors on those Subjects, I have here mentioned the Books which will best acquaint them with the several Performances, and the just Character they deserve, which are. as follow: For Divinity, Bray's "Bibliotheca Parochialis," 8vo. Wilkin's on Preaching, Bp. Beveridge's Thesaurus Theologicus, 4 vols, and Boswell's Method of Studying, 2 vols. 8 vo. For Physick, Boerhaave's Method of Studying Physick, and James's Medical Dictionary. For Law, Mr. Worrall's Law Catalogue, which is a very compleat List of Books, and some sensible Gentleman of the Profession, will give a Character of the Books worth having. For Mathematicks, &c. the Authors cited in Mr. Chambers's Dictionary, Miller's Gardener's Dictionary, Coates's Dictionary of Heraldry, will, I believe, answer the Purpose. If some abler Hand shall enlarge my Plan,