Letter to Henry Oldenburg, 16 March 1671 Isaac Newton c. 219 words The Newton Project Falmer 2014 Newton Project, University of Sussex

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 16 March 1671, in English, c. 223 words, 2 pp. 2 pp.

Published in H.W. Turnbull (ed), The Correspondence of Isaac Newton, vol. 1 (Cambridge: 1959), p. 120

in English

 Letter to Henry Oldenburg, 19 March 1671 [EL/N1/36] EL/N1/35, Royal Society Library, London, UK UKLondonRoyal Society Library EL/N1/35 16 March 1671 England English Holograph Unknown Cataloguer (1) Unknown Cataloguer (2) Henry Oldenburg ScienceOpticsCorrespondence Transcription by Daniele Cassisa Code audited by Michael Hawkins
35Newton 135

Cambridg March 16th 1671.

SrSir

The book wchwhich my Carrier by forgetfulnesse disappointed me of the last week I have now received & thank you for it. With the Telescope wchwhich I made I have sometimes seen remote objects & particularly the Moon very distinct in those ptsparts of it wchwhich were neare the sides of the visible angle. And at other times when it hath been otherwise put together it hath exhibited things not wthwithout some confusion. Wchwhich difference I attributed chiefely to some imperfection that might possibly be either in the figures of yethe metalls or eye glasse, & once I found it caused by a little tarnishing of the Metall in 4 or 5 days of moist weather.

One of the Fellows of orour College is making such such another Telescope wthwith wchwhich last night I looked on Jupiter & he seemed as distinct & sharply defined as I have seen him in other Telescopes. When he hath finished it I will examin more strictly & send you an account of its f performances, For it seemes to be somthing better then that wchwhich I made.

YorYour humble servant

I. Newton

These

To Henry Oldenburg Esquire at his house about the middle of the old Pall-mail in Westminster.

London

2

Rec.Received March 18. 71.