it a sum equal to the profits it would have realised upon the quantity in deficit. In return for this guarantee of quantity the Standard was to pay such rates as might be fixed from time to time by the four trunk lines (which rates it was understood should be so fixed by the trunk lines as to place them on a parity as to cost of transportation by competing lines), and it was to receive weekly a commission of ten per cent, on its shipments it controlled.[1] No commission was to be allowed any other shipper unless he should guarantee and furnish such a quantity of oil that after deducting any commission allowed, the road realised from it the same amount of profits as it did from the Standard trade. The points in the agreement were embodied in a letter from William Rockefeller to Mr. Scott. This letter and the answer declaring the arrangement to be satisfactory to the company are both dated October 17.[2]
Four months later Mr. Rockefeller was able to take another step of great advantage. He was able to put into operation the system of drawbacks on other people's shipments which the South Improvement Company contracts had provided for, and which up to this point he seems not to have been securely enough placed to demand. There were no bones about the request now. Mr. O'Day, the general manager of the American Transfer Company, a pipe-line principally in Clarion County, Pennsylvania, which, including its branches, was from eighty to 100 miles in length, a company now one of the constituents of the United Pipe Line, 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
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