富蘭克林針對電力進行的實驗與發現 Franklin's Experiments and Observations on Electricity

出處: Franklin, Benjamin. "[Diagrams of various electrical phenomena and title page of Experiments and observations of electricity]." Published in: The tradition of science / Leonard C. Bruno. Washington, D.C. : Library of Congress, 1987, p. 278. Prints and Photographs Division of the Library of Congress.