1To Thomas Jefferson from David Ross, 2 March 1807 (Jefferson Papers)
I had the honor of receiving your letters dated 24th. Ulto—I delayd answering for a short time in expectation of desiring some information on refering to the Correspondence of my Agents respecting the Mammoth bones at the Great bone Lick— I am glad the Philosophical Society have made considerable progress in connecting a skeleton of that wonderfull animal and I fondly hope Capt. Clark will be...