1Thomas Jefferson to Eleuthère I. du Pont de Nemours, 24 April 1811 (Jefferson Papers)
...sold here is wretched, carrying the index of the French eprouvette (such as you furnished
2Thomas Jefferson to Patrick Gibson, 20 May 1813 (Jefferson Papers)
I have the eprouvette used in our war department for proving powder.
...eprouvette is an...
3Thomas Jefferson to Patrick Gibson, 12 June 1813 (Jefferson Papers)
it’s force
by the eprouvette is 16.
4Eleuthère I. du Pont de Nemours to Thomas Jefferson, 17 May 1811 (Jefferson Papers)
...does not give as good a report on a small eprouvette on
5To James Madison from Charles W. Goldsborough, 21 January 1813 (Madison Papers)
...Lieutenant Neal, who had loaded the eprouvette, had showed “great resentment” at...
6To James Madison from Thomas Ewell, 23 May 1813 (Madison Papers)
...established that 85 yds. in the Brass Eprouvette—was equal to over 200 in the Iron...
7To James Madison from Thomas Ewell, 27 July 1813 (Abstract) (Madison Papers)
...by Catalano having been allowed to load the eprouvette, and asked that Ewell’s powder be tried...
8From Thomas Jefferson to Thomas Mann Randolph, 11 October 1808 (Jefferson Papers)
...& a good deal in the way of the powder eprouvette which I shewed you.