An Act for empowering the Company of Proprietors of the Grand Junction Canal, to raise a further sum of money to enable them to complete the works authorized to be executed in pursuance of the several acts passed in the thirty-third, thirty-fourth, thirty-fifth, thirty-sixth, thirty-eighth, and forty-first years of the reign of his present Majesty; and for amending, altering, and enlarging the powers and provisions of the said acts