: The Complete Works in Philosophy Politics and Morals of the late Dr. Benjamin Franklin Vol. 1 [of 3] by Franklin Benjamin - Franklin Benjamin 1706-1790; Statesmen United States Biography; United States History Colonial period ca. 1600-1775 Sources; Conduct

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LIFE of Dr. FRANKLIN 1

LETTERS AND PAPERS ON ELECTRICITY.

Introductory Letter. 169

Wonderful effect of points.--Positive and negative electricity.--Electrical kiss.--Counterfeit spider.--Simple and commodious electrical machine. 170

Observations on the Leyden bottle, with experiments proving the different electrical state of its different surfaces. 179

Further experiments confirming the preceding observations.--Leyden bottle analysed.--Electrical battery.--Magical Picture.--Electrical wheel or jack.--Electrical feast. 187

Observations and suppositions, towards forming a new hypothesis, for explaining the several phenomena of thunder-gusts. 203

Introductory letter to some additional papers. 216

Opinions and conjectures, concerning the properties and effects of the electrical matter, and the means of preserving buildings, ships, &c. from lightning, arising from experiments and observations made at Philadelphia, 1749.--Golden fish.--Extraction of effluvial virtues by electricity impracticable. 217

Additional experiments: proving that the Leyden bottle has no more electrical fire in it when charged, than before: nor less when discharged: that in discharging, the fire does not issue from the wire and the coating at the same time, as some have thought, but that the coating always receives what is discharged by the wire, or an equal quantity: the outer surface being always in a negative state of electricity, when the inner surface is in a positive state. 245

Accumulation of the electrical fire proved to be in the electrified glass.--Effect of lightning on the needle of compasses, explained.--Gunpowder fired by the electric flame. 247

Unlimited nature of the electric force. 250

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