1Thomas Jefferson to George F. Hopkins, 5 September 1822 (Jefferson Papers)
Your letter of Aug. __ was recieved a few days ago. of all the departments of science no one...
2From Thomas Jefferson to George F. Hopkins, 16 December 1825 (Jefferson Papers)
I thank you, Sir, for the pamphlet you have been so kind as to send me with your favor of the 5...