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You searched for: “machines; electricity”
Results 1-3 of 3 sorted by date (ascending)
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1To Benjamin Franklin from Giambatista Beccaria, 24 December 1757 (Franklin Papers)
; and the Electricity appearing in the Machine, Electricity
2Thomas Cooper to Thomas Jefferson, 13 [March] 1819 (Jefferson Papers)
machines; electricity [index entry] 
3Rodolph Schaer to Thomas Jefferson, 25 March 1819 (Jefferson Papers)
machines; electricity [index entry]