1Alden Partridge to Thomas Jefferson, 6 September 1815 (Jefferson Papers)
barometers; altitude calculated with [index entry]
2Enclosure: Alden Partridge’s Table of Altitudes of Northern Mountains, [before 6 September 1815] (Jefferson Papers)
barometers; altitude calculated with [index entry]
3Thomas Jefferson to Alden Partridge, 12 October 1815 (Jefferson Papers)
barometers; altitude calculated with [index entry]
4Alden Partridge to Thomas Jefferson, 23 November 1815 (Jefferson Papers)
barometers; altitude calculated with [index entry]
5Enclosure: Alden Partridge’s Observations on the Use of Barometers to Compute Altitudes, 20 August 1811 (Jefferson Papers)
barometers; altitude calculated with [index entry]
6Enclosure: Alden Partridge’s Table of Altitudes of the Blue Ridge and Allegheny Mountains, [by 5 November 1810] (Jefferson Papers)
barometers; altitude calculated with [index entry]
7Thomas Jefferson to Alden Partridge, 2 January 1816 (Jefferson Papers)
barometers; altitude calculated with [index entry]
8Alden Partridge to Thomas Jefferson, 4 February 1817 (Jefferson Papers)
barometers; altitude calculated with [index entry]
9Alden Partridge to Thomas Jefferson, 9 January 1818 (Jefferson Papers)
barometers; altitude calculated with [index entry]
10Enclosure: Alden Partridge’s Notes on Altitudes of Mountains, 20 August 1817 (Jefferson Papers)
barometers; altitude calculated with [index entry]