21 Heir apparent of entail not to give consent in opposition to such creditors.
Where any heir apparent of an entailed estate under a tailzie dated prior to the said first day of August one thousand eight hundred and forty-eight shall, subsequent to the passing of the said recited Act, have granted any bond of annuity or other deed disponing or bearing to dispone, or containing obligation to dispone such estate, or any portion thereof, in security, such heir apparent shall not be entitled to give consent to any application, under the said recited Act or this Act, except under the like circumstances as would have enabled him to give consent, and to have his consent allowed, had such bond of annuity or other deed been granted previously to the passing of the said recited Act; but the consents of the other heirs substitute shall be given and allowed independently of the rights of any such creditors.