The matter is usually in the hands of the county commissioners, except so far as concerns their own compensation, which is fixed by law.

This is usually a _per diem_.
Eligibility .-- Any voter who has resided in the county a certain time (usually about thirty days) is eligible to any county office, except that of attorney or court commissioner.

The former must be a person admitted to practice in all the courts of the state.

The latter must be a man "learned in the law." In some cases a person may hold two offices at the same time; thus, a person may be court commissioner and judge of probate.

But no person can hold two offices one of which is meant to be a check upon the other.