In 1752, when he was forty-six, he determined to test for himself whether lightning and electricity were one. He made a kite from a large silk handkerchief, attached a hempen cord to it, with a silk string in his hand, and, with his son, hastened to an old shed in the fields, as the thunder-storm approached. As the kite flew upward, and a cloud passed over, there was no manifestation of electricity. When he was almost despairing, lo! the fibres of the cord began to loosen; then he applied his knuckle to a key on the cord, and a strong spark passed. How his heart must have throbbed as he realized his immortal discovery! A Leyden jar was charged, and Franklin went home from the old shed to be made a member of the Royal Society of London, to receive the Copley gold medal, degrees from Harvard and Yale Colleges, and honors from all parts of the world. Ah! if Josiah Franklin could have lived to see his son come to such renown! And Abiah, his mother, had been dead just a month! But she knew he was coming into greatness, for she wrote him near the last: "I am glad to hear you are so well respected in your town for them to choose you an alderman, although I don't know what it means, or what the better you will be of it besides the honor of it. I hope you will look up to God, and thank him for all his good providences towards you." Sweetest of all things is the motherhood that never lets go the hand of the child, and always points Godward! Lightning-rods became the fashion, though there was great opposition, because many believed that lightning was one of the means of punishing the sins of mankind, and it was wrong to attempt to prevent the Almighty from doing his will. Some learned men urged that a ball instead of a point be used at the end of the rod, and George III. insisted that the president of the Royal Society should favor balls. "But, sire," said Sir John Pringle, "I cannot reverse the laws and operations of nature." "Then, Sir John, you had perhaps better resign," was the reply, and the obstinate monarch put knobs on his conductors. Through all the scientific discord, Franklin had the rare good-sense to remain quiet, instead of rushing into print. He said, "I have never entered into any controversy in defence of my philosophical opinions; I leave them to take their chance in the world. If they are _right_, truth and experience will support them; if _wrong_, they ought to be refuted and rejected. Disputes are apt to sour one's temper and disturb one's quiet."