• List of Plates-- Preface-- Short Titles and Abbreviations-- Introduction-- The Correspondence.
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As Newton had by now entered his eighth decade, it can be no surprise that the correspondence in this sixth volume shows a marked decline in his activity and intellectual vigour. While the number of extant letters written by him on other that Mint business is relatively small, the majority of them are devoted to his controversy with Leibniz - Newton's dominant interest during this period. The correspondence of Newton shades gradually into the correspondence of the Newtonians. Thus notably Keill, De Moivre, Chamberlayne, Brook Taylor, the Abbe Conti and Des Maizeaux interested themselves in the calculus dispute, all of them (except the first) having frequent opportunities for personal conversation with Newton.
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• v. 1. I. Arithmetica universalis. II. Tractatus de rationibus primis ultimisque. III. Analysis per æquationes numero terminorum infinitas. IV. Excerpta quædam ex epistolis ad series fluxionesque pertinentia. V. Tractatus de quadraturâ curvarum. VI. Geometria analytica sive specimina artis analyticæ. VII. Methodus differentialis. VIII. Enumeratio linearum tertii ordinis. Editoris:
• 1. Logistica infinitorum.
• 2. De geometria fluxionum sive additamentum tractatûs Newtoniani de Rationibus primis ultimisque.--
• v. 2. Philosophiæ naturalis principia mathematica: Principiorum libri priores duo, De motu corporum.--
• v. 3. I. Principiorum liber tertius, De systemate mundi. II. De mundi systemate. III. Theoria lunæ. IV. Lectiones opticae. Editoris: De viribus centralibus quæ rationem triplicatæ distantiarum a centro contrariam inter se constanter servant.

• v. 4. I. Opticks. II. Letters on various subjects in natural philosophy, published from the originals in the archives of the Royal Society of London. I. Relating to reflecting telescopes. II. Relating to the theory of light and colours. III. Relating to the excitation of electricity in glass. III. Letter to Mr. Boyle, on the cause of gravitation. IIIa. De natura acidorum. IV. Tabulæ duæ, calorum altera, altera refractionum. V. De problematibus Bernoullianis. VI. Propositions for determining the motion of a body urged by two central forces. VII. Four letters to Dr. Bentley containing some arguments in proof of a deity. VIII. Commercium epistolicum. IX. Additamenta commercii epistolici ex historia fluxionum Raphsoni.--
• v. 5. I. The chronology of ancient kingdoms amended. II. A short chronicle from a ms. the property of the Rev. Dr. Ekins, dean of Carlisle. III. Observations upon the prophecies of Holy writ, particularly the prophecies of Daniel and the Apocalypse of St. John. IV. An historical account of two notable corruptions of Scripture. In a letter to a friend.