There was tingling over his fingers, into the reins, into the horses, a mysterious vibrating current that was his chemical product, the off-giving of his spirit battery that made his hired horses prance like children. They chafed and tossed their heads and snorted. Aileen was fairly bursting with hope and vanity and longing. Oh, to be Mrs. Frank Algernon Cowperwood here in Chicago, to have a splendid mansion, to have her cards of invitation practically commands which might not be ignored! “Oh, dear!” she sighed to herself, mentally. “If only it were all true—now.” It is thus that life at its topmost toss irks and pains. Beyond is ever the unattainable, the lure of the infinite with its infinite ache. “Oh, life! oh, youth! oh, hope! oh, years! Oh pain-winged fancy, beating forth with fears.” CHAPTER IV. Peter Laughlin & Co. The partnership which Cowperwood eventually made with an old-time Board of Trade operator, Peter Laughlin, was eminently to his satisfaction. Laughlin was a tall, gaunt speculator who had spent most of his living days in Chicago, having come there as a boy from western Missouri. He was a typical Chicago Board of Trade operator of the old school, having an Andrew Jacksonish countenance, and a Henry Clay—Davy Crockett—“Long John” Wentworth build of body. Cowperwood from his youth up had had a curious interest in quaint characters, and he was interesting to them; they “took” to him. He could, if he chose to take the trouble, fit himself in with the odd psychology of almost any individual. In his early peregrinations in La Salle Street he inquired after clever traders on ’change, and then gave them one small commission after another in order to get acquainted. Thus he stumbled one morning on old Peter Laughlin, wheat and corn trader, who had an office in La Salle Street near Madison, and who did a modest business gambling for himself and others in grain and Eastern railway shares. Laughlin was a shrewd, canny American, originally, perhaps, of Scotch extraction, who had all the traditional American blemishes of uncouthness, tobacco-chewing, profanity, and other small vices. Cowperwood could tell from looking at him that he must have a fund of information concerning every current Chicagoan of importance, and this fact alone was certain to be of value. Then the old man was direct, plain-spoken, simple-appearing, and wholly unpretentious—qualities which Cowperwood deemed invaluable. Once or twice in the last three years Laughlin had lost heavily on private “corners” that he had attempted to engineer, and the general feeling was that he was now becoming cautious, or, in other words, afraid. “Just the man,” Cowperwood thought. So one morning he called upon Laughlin, intending to open a small account with him.