Salary of probation officer

In each county of this state having a population in excess of two hundred thousand (200,000), according to the Federal Decennial Census of 1960 or any succeeding Federal Decennial Census, the probation officer shall receive a salary of Six Thousand Dollars ($6,000.00) per annum, payable monthly. In addition to such salary the probation officer shall receive Six Hundred Dollars ($600.00) per annum, payable monthly out of the court fund of such county for expenses in attending to the duties of such office.