Philadelphia, Jan. 17. 1791.
I have the honour to inclose you a Postscript to the Report on Measures, Weights & coins now before your house. this has been rendered necessary by a small arithmatical error detailed in the estimate of the cubic foot proposed in that report. the head of Superficial measures is also therein somewhat more developed.
Nothing is known, since the last session of Congress of any further proceedings in Europe on this subject.
I have the honour to be with sentiments of the most profound respect Sir / Your most obedient / & most humble servt
DLC: Papers of Thomas Jefferson.