The sheriff shall, from time to time, prepare a list of the names of all persons who have applied for appointment as deputy sheriff and who meet the qualifications hereinbefore prescribed. Such list shall be posted in a public place for a period of not less than ten days, and thereafter shall be filed in the office of the prothonotary. No deputies shall be appointed by the sheriff whose names do not appear on said list.
16 P.S. § 4209