JH looking for some writings by Isaac Newton while at the Mint, but most of that seems to have vanished.
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JH looking for some writings by Isaac Newton while at the Mint, but most of that seems to have vanished.
The book on the coinage of England in the 1670s is by one William Jeake. Comments on the diversity of coins available at that date and how their values changed by proclamation. Should the present coinage be decimalized he hopes the half crown will be withdrawn.
Asks for the experience of other countries in introducing decimal coinage.
Has he heard the names of the coins decided on by the Commons when the Pound is decimalized? W. R. Hamilton has informed him that he has heard from JH. Is going to the seaside tomorrow.
Thanks for AD's report on coinage [see JH's 1853-4-11], and for AD's puns.
Intends to send on Francis Baily's letters soon. Would like to see the coinage report.
Is sending the packet of Francis Baily's letters today. Sees that Thomas Wright, the Milky Way man, kept a shop in Fleet St. and was a mathematical instrument maker. Warren de La Rue has doubtless sent him his picture of Saturn.
Has found a seventeenth-century mathematical manuscript amongst Francis Baily's papers with JH's handwriting on it; can he explain the mystery? There is also a letter from P. L. M. Maupertius to James Bradley, which he proposes sending to the R.S.L.
JH's copy of Apollonius's work on conic sections was given to Francis Baily. [P. L. M. de] Maupertuis's letter to [James] Bradley is 'real prize.' Comment on AD's puns. Finds W. R. Hamilton's Quaternions 'horribly metaphysical.'