21From Thomas Jefferson to Thomas Cooper, 1 September 1807 (Jefferson Papers)
Your favor of the 9th. is recieved & with it the copy of Dr. Priestley’s Memoirs, for which I...
22To Thomas Jefferson from Thomas Cooper, 16 October 1808 (Jefferson Papers)
After four years perseverance I have succeeded in calling the attention of our State Legislature...
23From Thomas Jefferson to Thomas Cooper, 27 October 1808 (Jefferson Papers)
When I recieved your letter of the 16th. I thought I had not a copy of my Report on Measures,...
24To Thomas Jefferson from Thomas Cooper, 4 December 1808 (Jefferson Papers)
I have finished a brief account of what has been done on the subject of a Standard for weights...
25To Thomas Jefferson from Thomas Cooper, 5 February 1809 (Jefferson Papers)
I was extremely glad to see the result of the Meeting in Philadelphia in favour of the measures...
26To Thomas Jefferson from Thomas Cooper, 19 February 1809 (Jefferson Papers)
intended to have proceeded from hence to Was[hington] the place ere your departure, but I find I...