71Rodolph Schaer to Thomas Jefferson, 25 March 1819 (Jefferson Papers)
microscopes [index entry] scientific instruments; microscopes [index entry]
72From John Quincy Adams to John Adams, 28 March 1822 (Adams Papers)
...of them—Let not the Telescope, the Microscope, the Air–pump, the Electrical Machine,...
73Thomas Skidmore to Thomas Jefferson, 18 August 1822 (Jefferson Papers)
the microscope with its spherule eye-glass
74From John Adams to Peter Perpignan, 4 March 1823 (Adams Papers)
...it even with the help of a solar microscope & should not be able to distinguish the...
75Thomas Jefferson’s Proposed List of Instruments for the classes of Nat. History & Mathematics, ca. 26 Apr. 1824, 26 … (Jefferson Papers)
Microscope, double, very powerful, not fitted as solar.
76Francis W. Gilmer: Lists of Instruments to be Furnished to the University of Virginia by John Tuther and John Cary, ca. … (Jefferson Papers)
Solar microscope for opake & transparent objects
77To Thomas Jefferson from William H. Fitzwhylsonn, 21 March 1825 (Jefferson Papers)
...possession, a new and complete Lucernal Microscope for sale? For viewing microscopic objects...
78Editorial Note: The Northern Journey of Jefferson and Madison (Jefferson Papers)
...in its various stages with “an excellent microscope” and was convinced it had always...