A year previous to this, Benjamin Franklin had established the important fact of the identity of lightning and the electric fluid. From time to time, he had sent accounts of his experiments to the Royal Society of England; but the communications were not admitted into the printed transactions of that learned body. They were given, however, to Mr. Cave, the editor of the _Gentleman’s Magazine_, who had sense enough to see their superlative importance, and who published them in a pamphlet, with a preface written by Dr. Fothergill. By additions subsequently made, the pamphlet grew into a quarto volume; was translated into French, German, and Latin; and attracted the attention of all the philosophers in Europe. The result was, that even the Royal Society began to reconsider the very experiments which they had treated with ridicule; and admitted Franklin, in 1753, into their honourable corporation, bestowing upon him the Copley medal, and all without solicitation, and without the payment of the customary fees. With his characteristic keenness, Wesley laid hold of Franklin’s facts as soon as they were published. They were new and startling; but he saw, that they were most momentous, and evidently entertained the hope, that they would be turned to practical account, in a way which would excite the amazement and gratitude of the human race. Hear what he says:— “1753, February 17.—From Dr. Franklin’s letters, I learned,—1. That electrical fire is a species of fire, infinitely finer than any other yet known. 2. That it is diffused, and in nearly equal proportions, through almost all substances. 3. That, as long as it is thus diffused, it has no discernible effect. 4. That, if any quantity of it be collected together, whether by art or nature, it then becomes visible in the form of fire, and inexpressibly powerful. 5. That it is essentially different from the light of the sun; for it pervades a thousand bodies which light cannot penetrate, and yet cannot penetrate glass, which light pervades so freely. 6. That lightning is no other than electrical fire, collected by one or more clouds. 7. That all the effects of lightning may be performed by the artificial electric fire. 8. That anything pointed, as a spire or tree, attracts the lightning, just as a needle does the electrical fire. 9. That the electrical fire, discharged on a rat or fowl, will kill it instantly; but discharged on one dipped in water, it will slide off, and do it no hurt at all. In like manner, the lightning, which will kill a man in a moment, will not hurt him, if he be thoroughly wet. What an amazing scene is here opened, for after ages to improve upon!”