Chapter XXIV: Section 5: And be it further enacted, that it shall be the duty of

said superintendents to cause the soil adjacent to said posts, in extent not exceeding 640 acres, to be cultivated in a farmer-like manner and to produce such articles of culture as in their judgment shall be deemed the most profitable and available for the maintenance of said posts, for the supply of troops and other Government agents which may from time to time resort thereto, and to render the products aforesaid adequate to defraying all the expenses of labor in and about said posts, and the salary of the said deputy superintendent, without resort to the Treasury of the United States, remitting to the Secretary of the Treasury yearly a sworn statement of the same, with the surplus moneys, if any there shall be.