Sir Isaac's principal theological works are. Observations on the Prophecies ofl/ohj Writ,i-iz. Daniel and the Apoc- alypse, and his Historical A ccoiint of two notable Corrup- tions of Scripture, mainly composed prior to 1G90, but finished in that year, and first published in 1751 under the erroneous title of Two Letters to Mr. Clarke, late Divinity Professor of tlie Remonstrants in Holland (1734). It appears to have been first published entire in Horsley's edition of Newton's works, under the title, Historical Account of two notable Corruptions of Script- ure, in a iMter to a Friend. That friend was probably Locke, the ])hilosopher. In this work Sir Isaac consid- ers the two noted texts, 1 John v, 7, and 1 Tim. iii, IG. The former he attetnpts to prove spurious, and the lat- ter he considers a false reading. A portion of the work was commented on by the Rev. E. Henderson, D.D., in T/ie great Mystery of Codliness Incontrovertible, or Sir I. Newton and the Socinians foiled in the Attempt to prove a Corruption in the Text 1 Tim. iii, 16 (^1830, 8s-o). Sir David Brewster, in his first edition of his Life of Newton, denied that Newton was unorthodox in
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any respect, but further research has revealed the fact that he speculated much regardmg the ojxoovmoQ, and must have entertained Arian views. Yet Brewster in- sists that Newton " was a sincere and humble believer in the leadiiif/ dodrims of our religion, and lived con- formably to its precepts. . . . Cherishing its doctrines and leaning on its promises, he felt it his duty, as it was his delight, to apply to it (i. e. Christian truth) that intellectual strength which had successfully sur- mounted the difficulties of the material universe. . . . He added to the cloud of witnesses the brightest name of ancient or modern times." Sir Isaac's chief contri- bution to metaphysics was in the form of a scholium to the second edition of the Princijna (1713) respecting space and duration, which was subsequently expanded into an a jirioi-i argument by Dr. S. Clarke and the philosophers of his school. It is singular, j'et true, that the subsequent deviation from Locke's principles and method, or, more properl}', the recognition of an appro- priate sphere for a priori truth, for which Locke's anal- j'sis has failed to provide, should have been largely owing to the influence of these tw^o eminent physicists. The fact cannot be questioned that speculative philoso- phy asserted a wider range of inquiry for itself under the impulse given to it by Dr. Samuel Clarke and the theologians and philosophers of his school (see Stewart, Pj-el. Diss. pt. ii, see. 3). The principal works of New- ton were collected and published by Dr. Horsley, under the title of Newtoni Opera quce extant omnia (Lond. 1779-85, 5 vols. 4to). In the foregoing list, where a work had been reprinted in Horsley's edition, reference is made to the volume. The following were, with few exceptions, first printed in Horsley's edition: tome i, " Excerpta quredam ex Epistolis Newtoni ad Series Fluxionesque pertinentia;" "Artis Analytics Specimi- na, vel Geometria Analy tica." Tome iii, " Theoria Lu- nse." Tome iv, " Letters on various Subjects in Natural Philosophy, published from the Originals in the Ar- chives of the Royal Society;" "Letter to Mr. Boyle on the Cause of Gravitation ;" "Tabute du;\>, Colorum al- tera, altera Eefractionum ;" " De Problematibus Ber- nouillianis;" "Propositions for determining the Motion of a body urged by two Central Forces;" "Four Letters to Dr. Bentley ;" " Commercium Epistolicum D. Johan- nis Collins, et aliorum, de Analysi Promota" (first pub- lished by the Royal Society in 1713: a new edition ap- peared in 1722); "Additamenta Commercii Epistolici." Tome v, "A short Chronicle from a Manuscript, the property of the Rev. D. Ekins, dean of Carlisle." The minor works of Newton have been collected and pub- lished under the title of Opuscula Mathematica, Philo- sophica, et Philolor/ica ; colleyit partimque Latine ver- iit ac 1-ecensiiit Jah. Casiillinneus (Laus. et Genev. 3 vols. 4to). After the death of Newton, Dr. Pellet was ap- pointed by the executors to examine his manuscripts and papers, and to select such as he deemed adapted for publication. They are eighty-two in number, and con- sist of a great number of sheets. But manj' of those on theological subjects are mere copies over and over again, and with very slight variations. Of these manuscripts the only ones which Dr. Pellet deemed fit to be printed were the "Chronology" and "An Abstract of the Chro- nology," the former in ninety-two, the latter in twelve half-sheets folio. At the same time he recommended for further consideration those entitled " De Motu Cor- porum," " Paradoxical Questions concerning Athana- sius," "History of the Prophecies," and a bundle of loose niathematical papers. A catalogue of these man- uscripts was appended to a bond given by Mr. Conduit to the administrators of Newton, wherein he binds him- self to account for any profit he may make by their pub- lication. A list of them will be found in Hutton's Dic- tionary. Those on theological subjects are, with many other Newton papers, in the possession of the earl of Portsmouth. The valuable collection of letters between Newton and Cotes, relative to the publication of the second edition of the Principia, preserved in the librarv VIL— C