"[1] In 1847, the law was made more precise, and a committee of examination was created to appraise the adequacy of the teachers in the common schools.
The provision stated, "the board of superintendents are authorized and empowered to appoint a committee of examination, consisting of not more than five persons, whose duty it shall be to examine into the qualifications, both mental and moral, of all such persons as may apply for employment as teachers in any of the common schools in their respective counties.
No person shall be employed as a teacher in any of the common schools in any county of the State in which an examining committee is appointed, unless he obtain from a majority of the committee of examination for the county in which he seeks employment a certificate of his good moral character and sufficient mental qualifications as such teacher.
That in addition to the requirement for obtaining a first-grade certificate, the applicant must, after one year from the ratification of this act, stand a satisfactory examination upon some books on school economy and theory and practice of teaching, to be selected by the State Superintendent of Public Instruction.
The State Board of School Examiners shall have power to grant first-grade life certificates, which may be used in any county in the State, and shall furnish to the public, at least one month before the examination full information as to the nature and character of the requirements for such first-grade life certificates.
"[3] "An Act to Revise and Consolidate the Public School Law of 1901" provides that the minimum age of persons to whom certificates shall be issued shall be eighteen years.
[7] During the same year an act was passed repealing the law granting graduates or students of institutions of learning certificates to teach.
"[8] During the legislative session of 1905 a law was passed empowering the State Superintendent of Public Instruction, at his discretion, to provide for a uniform system of gradation, examination, and certification of teachers.
"The State Superintendent of Public Instruction may, in his discretion, provide for a uniform system of gradation, examination and certification of public school teachers, prescribing the examination, the time and manner of conducting the same, and also for making provision for the classification of teachers' certificates into primary, intermediate, and high school.
"[8] In 1907 an act was passed providing for a first-grade State certificate for teachers, to be valid for a period of 5 years.
Other requirements included, "That no person shall be permitted to stand such examination without first filing with the State Superintendent of Public Instruction a statement from the County Superintendent of Public Instruction of the county in which said applicant last taught that said applicant holds a first-grade certificate and has taught successfully at least one year."