The discourse made before the Royal Society the 26 of November 1674. Concerning the use of duplicate proportion in sundry important particulars together with a new hypothesis of springing or elastique motions / By Sir William Petty.

  • Petty, William, Sir, 1623-1687.
Date:
1674
Catalogue details

Licence: Public Domain Mark

Credit: The discourse made before the Royal Society the 26 of November 1674. Concerning the use of duplicate proportion in sundry important particulars together with a new hypothesis of springing or elastique motions / By Sir William Petty. Source: Wellcome Collection.

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    ll, Ws muchas one alone, and uignree of them, placed as a- iudpre-faid, fhall bear nine ‘tttmes as much, and fo on iia proportion of Roots to cljquares. Again, lay the weiume two Rods fide by fide, ita each other, then they iwiall bear but double, three i#pall bear triple, and fo wiorward , in Arithmetical \roportion. From whence duit follows, that four of them laced {quare, fhall bear -qjtght times as much as one , i lone, But if the fame four Rods