Draft of <ref target="/catalogue/record/MINT00619">MINT00619</ref> (Mint 19/2/322) Isaac Newton c. 1,734 words Newton Project London 2019 Newton Project, University of Oxford

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 c. 13 April 1714, c. 1,734 words.

On reverse of Mint 19/2/340: draft relating to the calculus controversy. Mint 19/2/353 is followed by three variant draft attacks on Leibniz [preparatives for the letter printed in NC, 6: 80-95: see especially ibid., n. 54].

 'Observations upon the Estimate of the neat profit of coyning 1500 Tunns of Copper into half pence & farthings' [MINT 19/2/322] MINT 19/2/353, National Archives, Kew, Richmond, Surrey, UK UKSurreyKew, RichmondNational Archives MINT 19/2/353 c. 13 April 1714 England English Holograph MintCopper Coinage Catalogue information compiled by Rob Iliffe, Peter Spargo & John Young Catalogue exported to teiHeader by Michael Hawkins Transcribed by Kees-Jan Schilt
Observations upon the Estimate of coyning 1500 Tunns the neat profit of coyning 1500 Tunns of Copper into half pence & farthings.

Obs. 1. In the last coynage of copper money an hundred tunns per an̄ in six years made a great complaint in Parliament whereby the coynage was stopt one yeareall the seventh year by reason of too great a quantity of copper money & after the coynage of another hundred Tunns the nation was fully stockt during the next five or six years. Therefore six or seven hundred Tunns is abundantly sufficient to stock the nation & a coynage of 1500 Tunns in five years is not practicable by reason of the clamours it would make amongst the people. At present there want not above an 100 Tonns in all.

Obs. 2. If a pound weigh of copper be cut into 20d, a Tonn in coyn will amount unto only 186£ 13s. 4d. It must be cut into 212d that a Tonn may make 205£. 6s. 8d. [If the copper be worth only 10d per £wt & yethe melting & whole coynage can be done for 35£ per Tonn & the copper money exchanged for 11£ per Tonn: apound weight ought to be cut into no more then 15d or 151412d, the farthinghalf penny being alloweed for hous-rent & Clerks & charges of setting up up a Mint. & incidents. For the money should be coyned as neare as can be to their to yethe intrinsic value as neare as can be conveniently. Or if a profit be made it should go to her Maty.Majesty]

Obs. 3. Copper of 10d pr £wtwt is too coarse; Casting drawing cutting flatting scouring nealaing blanching dying & coyning cannot be done for 35£ per Tonn [There is nothing set down for the Graver & Smith, nor for providing coyning tools.] And 11£ per Tonn for changing the copper money is something too much. [And there is no assay mentioned by wchwhich tohe goodness of the Copper may be Obs 4.] ascertained. To compare it wthwith a speciment is a slipery way of judging]‡ ‡ In coyning the last coynage of copper money, the melting5d pr lwt was allowed by the Patentees to the Mr for casting drawing cutting flatting scouring nealing blanching dryin & coyning & for the Master & Work Master & Worker the Graver & the Smith, &including the work of the graver & Smith. There was alo 40s per Tonn for allowed to a Comptroller. And if 34 o7£ 6 8 per Tonn be allowed for putting off, the whole charge including the charge price of yethe copper at 10d per Lwt will amount to about 16d per lwt wchwhich deducted from 22d per lwt leaves a profit of 6d per lwt. And this profit in coyning 1500 TOnns will amounts to 84000£ out of wchwhich something is tomay be abated for incidents &housrent clerks coyning tools & incidents Obs. 4. He that assays & sizes & coyns the copper money should not be impowered to make any profit by coyning it too light or too coarse, & therefore should have nothing to do with buying or providing the copper or distributing it to the people by tale, but should only receive it by weight & assay & deliver it back in money by weight & assay, & have it in his power to refuse bad copper. The best assay of fine copper is by hammering it when red hot & bending it when cold, & observing the grain in breaking as is done at the Copper mills. Obs. 5. My Lord Treasurer is desirous to have the money made of fine Copper & if it shall be of the same fineness with the Copper money of Sweden, the Copper must be made into Fillets at the Battering Mills or Drawing Mills.. For Copper of that degree of fineness will not easily be easily manufactored by casting. [The best assay of such fine Copper is by hammering it when red hot & bending it when cold & observing the grain in breaking as is done by the refiners of copper.] Obs. 6. There should be a method of assay 353
To give the reader a tast of their plainness I beg the favour of you to ptranslate print & print in your journal & transactions the letters of Mr James Gregoriyes Letter ofdated 15 Feb 17671 to the words in locis impaubus, the two Letterssecundum vulgaris Algebræ those præceptor & those of Mr Leibnitz dated 15 July & 26 Octob. 1674 of Mr Oldenburgs letter dated 15 Apr 1675, & of Mr Leibnitz answer Letters dated 20 May 16751675 & 28 Decem 1675, & 12 May 1676, & leave it to the Reader to make his own Observations upon them, & that paragraph of his Letter dated 27 Aug 1676 wchwhich begins with the words Sit QA1F Sector duabus rectis &c & ends with the words maxime  afficiens mentem: And leave it to the Reader to make his own remarks upon them. // And Then let him read the Analysis per æquationes Numero terminorum infinitas & Mr Newtons Letters of 10 Decemb. 1672, & 13 June & 24 Octob. 1676 & see if he cannot find the method of fluxions therein in them together wthwith the 5th Proposition of the Book of Quadratures taken deduced from that Method. of fluxions. And then let him compare the differential methods of Tangents of Dr Barrow & published 17670 & that of Mr Leibnits with one anotherset down in his Letter of 21 June. 1677 & see if they be not the same, & if Mr Leibnitz hath added any thing more to that method then what he had notice of inthe differential of Dr Barrow then what Mr Newton in his Letters above mentioned gave him notice of. Let every man consult the Records themselves & form ahis judgment from thence If Mr Leibnitz has any evidence to prove that he had the differential method before the year 1677 or the series of Gregory before he received it from Mr Oldenburg, or any of his other pretended inventions before he received them from other men, he may deserve to be heard. But if he goes on to refu question the candor of other men without proving his accusations if he against them & at the same time to insists upon his own candor as if it were injustice to question it; If he will bot acknowledgeacknowledge when & by wahat means he found his differential method; If he still goes on to puts his correspondents in Germany upon publishing defamatory libels & endeavours to laypapers without a name & by sucg indirect means endeavours to layset aside records wchwhich make against him & bring the matter to a wrangle: this noisy vainglorious help to carriage will convict him of the want of candour & justice this sort of carriage will make it needles to mind him any further. But Mr But Mr Leibnitz will give no reasons nor suffer but deb calls it injustice to question his candor & therefore keep pretends that he has reasons for himself wchwhich he is not minded to produce & is unwilling to let it be examined. & complains of everybody that questions it without hearing his pretended reasons which he will not produce. If he has any evidence to prove that he had yethe Differential method before yethe year 1677 or the series of Gregory before he received it from Oldenburg, or any of his other pretended inventions before he received them from other maen, he may produce them But if he goes on will not acknowledge when & by what means he found his differenntial method, nor if he goes on to question the candor of every body that's against him & without proving his accusations & to insist upon his own candor as if it were injustice to question it & pretend to reasons wchwhich he will not suffer to be examined. If he goes on to put his correspondents up in Germany upon publishing defamatory papers without a name & thereby endeavours to set aside records But because he insists uponMr Leibn. began these disputes & questions the candeor of every body that's against him & insists upon his own candor as if it were injustice to question it I& has referred the matter to a nameless Mathematician of his own chusing wchwhich is the same thing as to refer it to himself, I desire you to translate & publish a translation of Mr Gregories Letter of 15 Febr. 1671, to the words in locis impasemur in locis imparibus. all & all Mr Oldenburghs Letter of 15 Apr. 1675 & Mr Leibnitz's two Lettersanswer of 20th May 1675. And 12 May 1676 And because Mr Leibnitz in these two Letters represents that Mr the Quad the series for squaring the circle by expressing the relation between the arc & the tangent. Then publish the seri Then add the two Letters of Mr Leibnitz dated 15 July 1674 & 26 Octob 1674 concerning the series wchwhich in the first of those two Letters he calls a Theoreme in the second a Method for finding athe s area of athe sectorcircle or of a given Sector of a circlethereof, in the second a method for finding the circumference or any arc of a circle whose sine is given wchwhich [wchwhich series can be wchwhich s no other then that of Mr Newton for finding the Arc by this sine]. And then publish the letter Paragraph of hisMr Leibnitz's two letters of 28 Decem. 1675 & 12 May 1676 & in both wchwhich he pretends that the series wchwhich he had wrote of before & communicated at Paris / was that of was that wchwhich he had newly received fr wchwhich he had received from Mr Oldenburg for finding the Arc by the Tangent & in the latter desires Mr Oldenburg to procure from Mr Collins the Demonstration of the series for finding the Arc by the since, [& in reconpence for this method promises his trifling Theorem for transmuting of figures into one another by means of wchwhich he had found a Demonstration of the Theoreme sent him by Mr Oldenburg.]. You need only publish a translation of the Letters without any remarks upon them.