1From Thomas Jefferson to Mayer & Brantz, 22 November 1806 (Jefferson Papers)
It has not been in my power sooner to acknolege the reciept of your favor of the 15th. by which I percieve that the books you have been so kind as to import for me are arrived at Baltimore. I will request you to send them by the first vessel bound to this place or it’s vicinities Alexandria or George Town. in the bill of 181.90 D I percieve nothing but their actual cost. be so good as to lay...
2From Thomas Jefferson to Charles Willson Peale, 22 November 1806 (Jefferson Papers)
I recieved your letter of July 2. in due time, & soon after that the apparatus for making the inkpots in mr Hawkins’s polygraph moveable, so as to render the dip easy. but in the mean time I had thought of a contrivance which I had executed at Monticello, and which a three months use has proved to be as perfect as it is simple. each inkpot is set in a square saucer of very thin brass, ¼ I....