1George Fleming to Thomas Jefferson, 30 October 1815 (Jefferson Papers)
The papers I have taken the liberty of sending to you contain the description of a new theory on the application of Steam, I sent a copy to Doc r Thornton (patent office) some weeks past, who has done me the honor to notice my communication in a manner that gives me much encouragement, I wished for some months past to send them to you, & only hesitated because I never had the happyness of your...
2Thomas Jefferson to George Fleming, 29 December 1815 (Jefferson Papers)
At the date of your favor of Oct. 30. I had just left home on a journey to a distant possession of mine , from which I am but recently returned: and I wish that the matter of my answer could compensate for it’s delay. but, Sir, it happens that of all the machines which have been employed to aid human labor, I have made my self the least acquainted with (that which is certainly the most...
3George Fleming to Thomas Jefferson, 10 February 1816 (Jefferson Papers)
On the subject of your hempbreak a thought occurr’d to me since I received your letter which I submit to your judgement. On the axis of the wallower instead of arms 15 in long, suppose a cast iron wheel 15 in diam r with cogs only half way round & on the face of the head block instead of a horn, a curved piece of cast iron 30 in long & 4 broad, with cogs corresponding in number & c with those...