Letter from the Secretary of the Treasury, transmitting, (pursuant to a resolution of the Senate, of 3d of April, 1820,) a statement of money annually appropriated, and paid, since the Declaration of Independence, for purchasing from the Indians, surveying, and selling the public lands; showing, as near as may be, the quantities of land which have been purchased; the number of acres which have been surveyed; the number sold, and the number which remain unsold; the amount of sales, the amount of forfeitures, the sums paid by purchasers, and the sums due from purchasers, and from receivers in each land district [electronic resource].