The district judges of each judicial district shall by rule fix the fees of probate referees, and also provide, insofar as practicable, a uniform schedule of compensation for inheritance tax appraisers, other appraisers, brokers, and agents employed at estate expense.

[C66, 71, 73, 75, 77, 79, 81, §633.21] 83 Acts, ch 186, §10123, 10201