TO PETER COLLINSON, ESQ. F. R. S. LONDON.
_Additional Proofs of the positive and negative State of
Electricity in the Clouds.--New Method of ascertaining it._
_Philadelphia, April 18, 1754._
The Complete Works in Philosophy, Politics and Morals of the late Dr. Benjamin Franklin, Vol. 1 [of 3] · 第 138 / 291 题