TO PETER COLLINSON, ESQ. F. R. S. LONDON.
_Wonderful Effect of Points.--Positive and negative
Electricity.--Electrical Kiss.--Counterfeit Spider.--Simple and
commodious electrical Machine._
_Philadelphia, July 11, 1747._
The Complete Works in Philosophy, Politics and Morals of the late Dr. Benjamin Franklin, Vol. 1 [of 3] · 第 72 / 291 题