The method the Standard depended upon to secure this control was the same as the method of the South Improvement Company—special privileges in transportation. We have seen how intelligently and persistently Mr. Rockefeller worked to secure these special privileges until, in 1877, he had made with all the trunk lines contracts which in every particular paralleled the contracts which in January, 1872, Messrs. Scott, Gould, Vanderbilt and McClellan made with the South Improvement Company. He now had a rebate on every barrel of oil he shipped, and this was given with the understanding that the railroad should allow no rebate to any other shipper unless that shipper could guarantee and furnish a quantity of oil for shipment which would, after deduction of his commission, realise to the road the same amount of profit realised from the Standard trade. He also had a drawback on every barrel his rivals shipped. No clause in the South Improvement Company’s contract with railroads had given more offence to the oil world than that which called for a drawback to the company on the oil shipped by outsiders. It will be remembered that the beneficiaries of this contract were to receive drawbacks of $1.06 a barrel on all crude oil that outside parties shipped from the Oil Regions to New York, and a proportionate drawback on that shipped from other points. The rebate system was considered illegal and unjust, but men were more or less accustomed to it. The drawback on other people’s shipment was a new device, and it threw the Oil Region into a frenzy of rage. It did not seem possible that the Standard would attempt to revive this practice again, and yet when it had got its hand strongly on the four trunk lines it made a demand for the drawback. It has already been recounted how, on February 15, 1878, four months after the Pennsylvania succumbed to the Standard’s demand, Mr. O’Day wrote to Mr. Cassatt: “I here repeat what I once stated to you, and which I wish you to receive and treat as strictly confidential, that we have been for many months receiving from the New York Central and Erie Railroads certain sums of money, in no instance less than twenty cents per barrel on _every barrel of crude oil carried by each of these roads_.... Co-operating as we are doing with the Standard Oil Company and the trunk lines in every effort to secure for the railroads paying rates of freight on the oil they carry, I am constrained to say to you that in justice to the interests I represent we should receive from your company at least twenty cents on each barrel of crude oil you transport.” And Mr. Cassatt after seeing the freight bills showing that both the Central and Erie allowed a drawback gave orders that the Pennsylvania pay one of 22½ cents. When Mr. Cassatt was under examination in 1874 the examiner remarked: “I understand, Mr. Cassatt, that this 22½ cents paid to the American Transfer Company is not restricted to all oil that passed through their lines.”