If there be two or more heirs, who have a right to receive the collation due to them in the property and effects of the succession, and they can not agree on the partition of the effects which they have thus chosen, the officer shall appoint experts to form allotments of these effects, for which the parties entitled to the collation shall draw lots, in the same manner as is hereafter prescribed for the formation and drawing of the lots of the definitive partition.