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Wallop, Isaac Newton (1825-1891) 5th Earl of Portsmouth
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Autograph letter to Roger Cotes

Draft of letter for which the final version does not survive, of late Jul./early Aug. 1712, containing a draft of the Scholium to Proposition 35 of the Principia, 2nd ed., 1713. See A.R. Hall and L. Tilling (eds.) The correspondence of Isaac Newton. Vol. 5, 1709-1713. CUP, 1975. pp 315-319, letters 929 and 931.

The letter was discovered in JCA's papers with letters from D. Brewster, March - May 1855, (Box 5/37), and had evidently been sent to Brewster for comment and returned, through the post.

The remainder of Newton's drafts of letters to Cotes are among the Portsmouth Papers in CUL, and the final versions (other than that of this letter), are in Trinity College Library.

Newton, Sir Isaac (1642-1727) Knight, natural philosopher and mathematician

Copies of papers

Transcripts of documents described in the catalogue of the Portsmouth Papers.

Sect. I. X. C.2 (probably) Fragment on the solid of least resistance.

Sect. I. X. C.3 Atmospheric refraction.

Sect. I. XI. On the invention of fluxions.

Sect. I. XV. No. 3-4 Draft of letter on finding longitude.

Newton, Sir Isaac (1642-1727) Knight, natural philosopher and mathematician

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"On the form of the solid of least resistance" Draft of letter from Newton to David Gregory, 1694... etc. MS copies of documents printed in the Appendix to the Preface of the printed catalogue of the Portsmouth Papers (copy in Box 27).

Newton Manuscripts Syndicate

Copies of papers

Transcripts of documents described in the catalogue of the Portsmouth Papers.

Sect. VI. IX. Correspondence from Cotes and Crownfield.

Newton, Sir Isaac (1642-1727) Knight, natural philosopher and mathematician

Copies of papers

List of papers returned to Lord Portsmouth.

Transcripts of documents described in the catalogue of the Portsmouth Papers.

Sect. X & XI, Conduitt papers.

Sect. XIII. ?No. 1? Extract made by Newton from the Will of Lord Halifax.

Newton, Sir Isaac (1642-1727) Knight, natural philosopher and mathematician

Copies of papers

Transcripts of documents described in the catalogue of the Portsmouth Papers.

Sect. VI. IV. Letters Newton to Flamsteed.

Sect. VI. VI. Letters Newton to Halley.

Sect. VI. VII Letters Halley to Newton.

Newton, Sir Isaac (1642-1727) Knight, natural philosopher and mathematician

Copies of papers

Notes by JCA on correspondence here transcribed.

Transcripts of documents described in the catalogue of the Portsmouth Papers.

Sect. VI. IX. Correspondence to Cotes and Crownfield.

Newton, Sir Isaac (1642-1727) Knight, natural philosopher and mathematician

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