be as follows, viz.: Auditor four hundred dollars ($400) per annum;
treasurer, three hundred dollars ($300) per annum; probate judge, one
hundred and fifty dollars ($150) per annum; school superintendent,
forty dollars ($40) per annum; county commissioners, four dollars
($4) per day each, while at work on their official duties; and these
salaries shall be their full compensation from the county treasury, and
be in lieu of all other fees from the county.