1Enclosure: Ferdinand R. Hassler’s List of Scientific lnstruments Procured for the United States Coast Survey, November … (Jefferson Papers)
scientific instruments; telescopes [index entry]
2Rodolph Schaer to Thomas Jefferson, 25 March 1819 (Jefferson Papers)
scientific instruments; telescopes [index entry]
3Thomas Jefferson to Wilson Cary Nicholas, 19 April 1816 (Jefferson Papers)
scientific instruments; telescopes [index entry]
4Thomas Jefferson to Robert Patterson, 21 March 1811 (Jefferson Papers)
scientific instruments; telescopes [index entry]
5Thomas Jefferson to William Davenport, 2 February 1819 (Jefferson Papers)
scientific instruments; telescopes [index entry]
6Thomas Jefferson to Thomas Skidmore, 29 August 1822 (Jefferson Papers)
scientific instruments; telescopes [index entry]
7John Wood to Thomas Jefferson, 2 February 1817 (Jefferson Papers)
scientific instruments; telescopes [index entry]
8Thomas Jefferson to Bartholomew Fuller, 17 December 1819 (Jefferson Papers)
scientific instruments; telescopes [index entry]
9Thomas Jefferson to William Davenport, 4 July 1819 (Jefferson Papers)
scientific instruments; telescopes [index entry]
10Thomas Jefferson to Robert Patterson, 2 February 1819 (Jefferson Papers)
scientific instruments; telescopes [index entry]