Note AC — SECTION X.

'The expense of transporting such persons from the United States to the coast of Africa, has been variously estimated. By those who compute it at the lowest rate, the mere expense of this transportation has been estimated at $20 per head. In this estimate, however, is not comprehended the expense of transporting the persons destined for Africa, to the port of their departure from the United States, or the necessary expense of sustaining them, either there or in Africa, for a reasonable time after their first arrival. All these expenses combined, the Committee think they estimate very low, when they compute the amount at $100 per head. It has been estimated by some at double this amount; and if past experience may be relied upon as proving any thing, the official documents formerly furnished to the Senate by the Department of the Navy, show that the expenses attending the transportation of the few captured slaves who have been returned to Africa by the United States, at the expense of this government, far exceeds even the largest estimate. But taking the expense to be only what the Committee have estimated it: Then the sum requisite to transport the whole number of the free colored population of the United States, would exceed twenty-eight millions of dollars; and the expense of transporting a number, equal only to the mere annual increase of this population, would exceed seven hundred thousand dollars per annum. Sums which would impose upon the people of this country, an additional burthen of taxation, greater than this Committee believe they could easily bear; and much greater than ought to be imposed upon them for any such purpose.' * * 'The annual increase of the slave population, at present, is at least 57,000. Now allow the same sum per head for the transportation of these persons, that has been estimated for the transportation in the other similar case; and the sum requisite to defray the expense of the transportation of all the slaves in the United States, would be one hundred and ninety millions of dollars; and that requisite to defray the expense of the transportation of a number only equal to their mere annual increase, would be five millions seven hundred thousand dollars per annum. But to either of these sums must be added the reasonable equivalent, or necessary aid, to be paid by the United States to humane individuals, in order to induce them voluntarily to part with their property. The Committee have no 'data' by which they can measure what this might be. But any sum, however small, will make so great an augmentation of the amount, as almost to baffle calculation, and to exhibit this project at once, as one exceeding, very far, indeed, any revenue which the United States could ever draw from their citizens, even if the object was to increase and multiply, instead of reducing the numbers of the class of productive labor.'—[Mr Tazewell's Report—U. S. Senate, 1828.]