Thomas Jefferson Papers
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Robert Patterson to Thomas Jefferson, 18 August 1810

From Robert Patterson

Philadelphia Augt 18th 1810


I am directed, by the Philosophical Society, to acknowledge the reciept (under cover from you) of a paper from M. Du Jareau of New Orleans, on the construction of a saw-mill to be worked by a horse.

This paper, according to the usage of the society, was referred to a committee, who have reported, in substance,

—That the paper does not appear to be intended by the Author as a communication to the Society for the purpose of being published in their Transactions, but merely to announce what he considers as an important discovery in mechanicks, and to solicit the aid of the1 Society, or some of its members, in making certain calculations of the power of his machine, which he confesses he is himself unable to make

—That the Author appears to have no adequate knowledge of the subject on which he writes, but that he labours under the common error of those who have vainly attempted to discover the perpetual motion, namely, that power may be actually generated or increased by the operation of machinery; or, that a machine may be made to communicate more power or force in a given time than it has received.

I remain, Sir, as ever, with sentiments of the greatest respect & esteem—Your Most obedt servt

Rt Patterson

RC (MHi); endorsed by TJ as received 10 Sept. 1810 and so recorded in SJL.

With only minor variations, Patterson quoted from the committee report of 17 Aug. 1810, which concluded that Du Jareau’s undated paper (enclosed in Du Jareau to TJ, 9 May 1810), was “wholly unworthy of any further notice of the Society” (MS in PPAmP: APS description begins American Philosophical Society description ends Archives; in Patterson’s hand, signed by Peter S. Du Ponceau, Patterson, and James Gibson).

1Preceding three words interlined.

Index Entries

  • American Philosophical Society; and G. Du Jareau search
  • Du Jareau, Godefroi; and American Philosophical Society search
  • Du Jareau, Godefroi; horse-drawn saw search
  • Du Ponceau, Peter Stephen; and American Philosophical Society search
  • Gibson, James; and American Philosophical Society search
  • Patterson, Robert; and American Philosophical Society search
  • Patterson, Robert; letters from search