Holograph memorandum deprecating a new alloy of silver and zinc in unknown proportions

Author: Isaac Newton

Source: MINT 19/2/463, National Archives, Kew, Richmond, Surrey, UK

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- Revision History
  - 1 January 2001
    - Catalogue information compiled by Rob Iliffe, Peter Spargo & John Young
  - 29 September 2011
    - Catalogue exported to teiHeader by Michael Hawkins
  - 14 March 2017
    - Transcribed by Will Scott
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<463r>

Danger of a clamour. A power in the King or Regency to stop the coinage That the Comptroller see {them} melted down again as often as it is without the Remedy.

The Composition not yet discovered. It makes a hard brittle metal not coinage & must be altered to make it malleable. The quantity of silver in it unknown. The Zink evaporates fast & by evaporating the colour will change, amp; therefore the composition is unfit for other uses. A mixture of silver & copper of more value.

Professor Rob Iliffe
Director, AHRC Newton Papers Project

Scott Mandelbrote,
Fellow & Perne librarian, Peterhouse, Cambridge

Faculty of History, George Street, Oxford, OX1 2RL - newtonproject@history.ox.ac.uk

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