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Letter · 1673 · age 30

An Extract of Mr Isaac Newton's Letter ... concerning the Number of Colors

by Isaac Newton

Kept from www.newtonproject.ox.ac.uk · 1 file · 22 KBCall number NEW L1673.01

Provenance

Source
www.newtonproject.ox.ac.uk
Retrieved
1 October 2026
Source terms (summary)
'(c) 2026 The Newton Project' (page footer)
Rights
Likely in copyrightModern Newton Project transcription with a current copyright notice; Newton's own words are public domain.Basis: added material: modern diplomatic transcription, '(c) 2026 The Newton Project'.
Formats
HTML
Fingerprint
70d958d217a9dc4fffaa5c8a5be152e6d1e1303faad1540ac9a2ccf0b39f6259sha256 of the file (64 characters). Any change to the file changes this code.
Cite as
Isaac Newton, An Extract of Mr Isaac Newton's Letter ... concerning the Number of Colors (1673). Long Keeping, call number NEW L1673.01. https://longkeeping.com/isaac-newton/an-extract-of-mr-isaac-newton-s-letter-concerning-the-number/
Unchanged since collected At the last check, on 2 October 2026, all 903 originals, this work's file among them, matched the fingerprints recorded when they were collected. Each copy is re-checked by hand once a year; there is no automatic alert yet.

Notes on this copy

  • #6The source's terms restrict reuse (a copyright notice, a non-commercial licence, research use only, or permission required). The work's source terms say why it is served or held.

Original

Held in the archive: likely in copyright.

See it at its source (another site)

Files

First pass, not a clearance.

FileFormatSizeSourcesha256Label
NATP00018.htmlmain HTML 22 KB www.newtonproject.ox.ac.uk 70d958d217a9dc4fffaa5c8a5be152e6d1e1303faad1540ac9a2ccf0b39f6259 Likely in copyrightModern Newton Project transcription with a current copyright notice; Newton's own words are public domain.Basis: added material: modern diplomatic transcription, '(c) 2026 The Newton Project'.Held in the archive: likely in copyright. Its source (another site)