TO PETER COLLINSON, ESQ. F. R. S. LONDON.
_Observations on the Leyden Bottle, with Experiments proving the
different electrical State of its different Surfaces._
_Philadelphia, Sept. 1, 1747._
The Complete Works in Philosophy, Politics and Morals of the late Dr. Benjamin Franklin, Vol. 1 [of 3] · 第 78 / 291 题