1To Thomas Jefferson from Benjamin Henry Latrobe, 21 March 1807 (Jefferson Papers)
I have made a design, and a bargain for your redStone at 20₶. If you will have the goodness to...
2To Thomas Jefferson from Benjamin Henry Latrobe, 21 March 1807 (Jefferson Papers)
I was going to send you the enclosed when I received your valuable present of the Camera obscura,...