If any appropriation not authorized by this Act be made of any moneys paid to or held in trust by the said trustees or any trustee appointed as hereinafter provided the trustees who have consented to the misappropriation of such moneys in addition to any criminal proceedings to which they may be liable in respect thereof shall be jointly and severally liable to refund the amount of such appropriation together with interest thereon and the same may in any court of competent jurisdiction be recovered by the Board of Land and Works from such trustees or any of them as money lent to such trustees and may be sued for by any person appointed in that behalf by the said Board.