The Complete Works in Philosophy, Politics and Morals of the late Dr. Benjamin Franklin, Vol. 2 [of 3] — Queries and Conjectures relating to Magnetism and the Theory of the Earth.

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The Complete Works in Philosophy, Politics and Morals of the late Dr. Benjamin Franklin, Vol. 2 [of 3] Volume 2 of 3 · Queries and Conjectures relating to Magnetism and the Theory of the Earth. · ch 41/126

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