Jefferson Papers Indexes | Papers of Thomas Jefferson, Index to volume 34 | G | geology
From Frédéric L. Hammer, 12 May 1801 [Main Series 34:99 n.]+
From William Maclure, 3 July 1801 [Main Series 34:504 n.]
From John Steele, 11 July 1801 [Main Series 34:551]+
