1II. Caspar Wistar, Jr. to the Secretary of State, [19 March 1791] (Jefferson Papers)
In consequence of your request, I have made several experiments with a view of ascertaining the...
2IV. Caspar Wistar, Jr. to the Secretary of State, [20 March 1791] (Jefferson Papers)
Dr. Wistar’s respectful compliments and informs Mr. Jefferson that twelve oclock to morrow will...