He visited many of the sick and poor, and writes: “Who could see such scenes unmoved? There are none such in a pagan country. If any of the Indians in Georgia were sick, those that were near them gave them whatever they wanted. Oh who will convert the English into honest heathen? I found some in their cells underground; others in their garrets, half starved both with cold and hunger; but I found not one of them unemployed, who was able to crawl about the room. So wickedly, devilishly false is that common objection, ‘They are poor, only because they are idle.’ If you saw these things with your own eyes, could you lay out money in ornaments and superfluities?”

Just at this juncture, Wesley began to turn his attention to a subject, which afterwards became one of the greatest discoveries of the age.

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!”

Wesley’s concluding sentence is remarkable; but even he had no idea that, in little more than a hundred years, electric fire would become the means of sending, almost instantaneously, its wondrous messages from England to India, and from shore to shore of the great Atlantic Ocean. Wesley, however, was one of the first to take an interest in the science of electricity. Six years before this, in 1747, he wrote: “I went to see what are called the electrical experiments. How must these also confound those poor half thinkers, who will believe nothing but what they can comprehend! Who can comprehend how fire lives in water, and passes through it more freely than through the air? How flame issues out of my finger,—real flame, such as sets fire to spirits of wine? How these, and many more as strange phenomena, arise from the turning round of a glass globe? It is all mystery; if haply, by any means, God may hide pride from man!” In 1756, he began to turn the discovery to practical account. Having procured an apparatus, he commenced electrifying persons for various disorders, and soon found his patients so numerous, that an hour every day had to be devoted to trying “the virtue of this surprising medicine.” Moorfields, Southwark, St. Paul’s, and the Seven Dials were the places of rendezvous; and here thousands resorted to avail themselves of Wesley’s remedy. He writes: “Hundreds, perhaps thousands, have received unspeakable good; and I have not known one man, woman, or child, who has received any hurt thereby; so that, when I hear any talk of the danger of being electrified (especially if they are medical men who talk so), I cannot but impute it to great want either of sense or honesty.” “We know it is a thousand medicines in one; in particular, that it is the most efficacious medicine in nervous disorders of every kind, which has ever yet been discovered.”

On February 26, Wesley left London for Bristol, reading on the road Mr. Prince’s “Christian History,” concerning which he makes the following remarks:—

“What an amazing difference is there in the manner wherein God has carried on His work in England and in America! There, above a hundred of the established clergy, men of age and experience, and of the greatest note for sense and learning in those parts, are zealously engaged in the work. Here, almost the whole body of the aged, experienced, learned clergy, are zealously engaged against it; and few, but a handful of raw young men, engaged in it, without name, learning, or eminent sense. And yet, by that large number of honourable men, the work seldom flourished above six months at a time, and then followed a lamentable and general decay, before the next revival of it; whereas, that which God hath wrought, by these despised instruments, has continually increased for fifteen years together; and, at whatever time it has declined in any one place, has more eminently flourished in others.”

In the same month, Wesley wrote concerning these “raw young men,” as follows:—

“London, February 6, 1753.