The money so deposited as last aforesaid shall remain in the Bank, by way of security to the parties whose lands shall so have been entered upon for the performance of the bond to be given by the promoters of the undertaking, as herein-before mentioned, and the same may, on the application by petition of the promoters of the undertaking, be ordered to be invested in the public funds or upon heritable securities, and accumulated; and upon the conditions of such bond being fully performed it shall be lawful for the Court of Session, upon a like application, to order the money so deposited, or the funds in which the same shall have been invested, together with the accumulation thereof, to be repaid or transferred to the promoters of the undertaking, or if such conditions shall not be fully performed it shall be lawful for the said court to order the same to be applied, in such manner as it shall think fit, for the benefit of the parties for whose security the same shall so have been deposited.