Any railroad company authorized to lease its railroad may, in addition to its then existing power to borrow money and issue bonds secured by mortgage, borrow money and issue bonds payable not more than one hundred years from the date thereof to an amount sufficient to cover all its indebtedness and for other purposes mentioned in section 48:12-134 of this Title. The company may secure such bonds by mortgage on its property and franchises. The bonds may be given in exchange for or in satisfaction of bonds or other debts of the company upon such terms as may be agreed on with the holders.
N.J.S. § 48:12-135