1Thomas Jefferson to Alden Partridge, 12 October 1815 (Jefferson Papers)
I thank you for the statement of Altitudes , which you have been so kind as to send me of our Northern mountains. it came opportunely, as I was about making enquiries for the height of the White mountains , of N. Hampshire , which have the reputation of being the highest in our Maritime states, and purpose shortly to measure geometrically the height of the Peaks of Otter , which I suppose the...
2Thomas Jefferson to Alden Partridge, 2 January 1816 (Jefferson Papers)
I am but recently returned from my journey to the neighborhood of the Peaks of Otter , and find here your favors of Nov. 23 & Dec. 9. I have therefore to thank you for your meteorological table and the Corrections , of Col o Williams ’s altitudes of the mountains of Virginia which I had not before seen; but especially for the very able