Sec. 14.
That the net proceeds derived by the board prior to July 1, 1921, from any activities authorized by this Act, or by the "Shipping Act, 1916," or by the Acts specified in section 2 of this Act, except such an amount as the board shall deem necessary to withhold as operating capital, for the purposes of section 12 hereof, and for the insurance fund authorized in section 10 hereof, and for the construction loan fund authorized in section 11 hereof, shall be covered into the Treasury of the United States to the credit of the board and may be expended by it, within the limits of the amounts heretofore or hereafter authorized, for the construction, requisitioning, or purchasing of vessels. After July 1, 1921, such net proceeds, less such an amount as may be authorized annually by Congress to be withheld as operating capital, and less such sums as may be needed for such insurance and construction loan funds, shall be covered into the Treasury of the United States as miscellaneous receipts. The board shall, as rapidly as it deems advisable, withdraw investment of Government funds made during the emergency under the authority conferred by the Acts or parts of Acts repealed by section 2 of this Act and cover the net proceeds thereof into the Treasury of the United States as miscellaneous receipts.