But this whole leasing system, both in New York and Chicago, entailed scandals perhaps even more reprehensible. All these leased properties, when taken over, were horse-car lines, and their transformation into electrically propelled systems involved reconstruction operations on an extensive scale. It seems perfectly clear that the chief motive which inspired these extravagant leases was the determination of the individuals who made up the syndicate to obtain physical possession and to make huge profits on construction. The "construction accounts" of the Metropolitan in New York form the most mysterious and incredible chapter in its history. The Metropolitan reports show that they spent anywhere from $500,000 to $600,000 a mile building underground trolley lines which, at their own extravagant estimate, should have cost only $150,000. In a few years untold millions, wasted in this way, disappeared from the Metropolitan treasury. In 1907 the Public Service Commission of New York began investigating these "construction accounts," but it had not proceeded far when the discovery was made that all the Metropolitan books containing the information desired had been destroyed. All the ledgers, journals, checks, and vouchers containing the financial history of the Metropolitan since its organization in 1893 had been sold for $117 to a junkman, who had agreed in writing to grind them into pulp, so that they would be safe from "prying eyes." We shall therefore never know precisely how this money was spent. But here again the Chicago transactions help us to an understanding. In 1898 Charles T. Yerkes, with that cynical frankness which some people have regarded as a redeeming trait in his character, opened his books for the preceding twenty-five years to the Civic Federation of Chicago. These books disclosed that Mr. Yerkes and his associates, Widener and Elkins, had made many millions in reconstructing the Chicago lines at prices which represented gross overcharges to the stockholders. For this purpose Yerkes, Widener, and Elkins organized the United States Construction Company and made contracts for installing the new electric systems on the lines which they controlled by lease or stock ownership. It seems a not unnatural suspicion that the vanished Metropolitan books would have disclosed similar performances in New York.