1Robert Bakewell to Thomas Jefferson, 23 December 1810 (Jefferson Papers)
books; on mineralogy [index entry]
2John R. Cotting to Thomas Jefferson, 20 January 1821 (Jefferson Papers)
books; on mineralogy [index entry]
3Louis H. Girardin to Thomas Jefferson, 19 April 1815 (Jefferson Papers)
books; on mineralogy [index entry]
4To Thomas Jefferson from James Madison, 30 November 1794 (Jefferson Papers)
...R. has not been able yet to find the Book on Mineralogy left with him. You will see by the...
5From James Madison to Thomas Jefferson, 30 November 1794 (Madison Papers)
.... R. has not been able yet to find the Book on Mineralogy left with him.
6Rodolph Schaer to Thomas Jefferson, 25 March 1819 (Jefferson Papers)
books; on mineralogy [index entry]