.When the receiver has realised all the property of the insolvent or so much thereof as can, in the opinion of the Court, be realised without needlessly protracting the receivership, he shall declare a final dividend; but before so doing, he shall give notice in manner prescribed to the persons whose claims to be creditors have been notified but not proved, that if they do not prove their claims within the time limited by the notice, he will proceed to make a final dividend without regard to their claims. After the expiration of the time so limited, or if the Court, on application by any such claimant, grants him further time for establishing his claim, then on the expiration of such further time, the property of the insolvent shall be divided among the creditors entered in the schedule without regard to the claims of any other persons.