Class B.—All persons receiving an annual salary of $720 or more, or a compensation at the rate of $720 or more, but less than $840 per annum.
Class C.—All persons receiving an annual salary of $840 or more, or a compensation at the rate of $840 or more, but less than $900 per annum.
Class D.—All persons receiving a salary of $900 or more, or a compensation at the rate of $900 or more, but less than $1,000 per annum.
Class E.—All persons receiving an annual salary of $1,000 or more, or a compensation at the rate of $1,000 or more, but less than $1,200 per annum.
Class 1.—All persons receiving an annual salary of $1,200 or more, or a compensation at the rate of $1,200 or more, but less than $1,400 per annum.
Class 2.—All persons receiving an annual salary of $1,400 or more per annum, or a compensation at the rate of $1,400 or more, but less than $1,600 per annum.
Class 3.—All persons receiving an annual salary of $1,600 or more per annum, or an annual compensation at the rate of $1,600 or more, but less than $1,800 per annum.
Class 4.—All persons receiving an annual salary of $1,800 or more per annum, or a compensation at the rate of $1,800 or more, but less than $2,000 per annum.
Class 5.—All persons receiving an annual salary of $2,000 or more or a compensation at the rate of $2,000 or more per annum.
Provided, That no person who may be appointed to an office by and with the advice and consent of the Senate and that no person who may be employed merely as a workman or laborer shall be considered as within this classification, and no person so employed shall be assigned to the duties of a classified place.