838 LAWS OF MARYLAND. [CH. 3S2

tory of the United States and Maryland, community civics,
hygiene and sanitation, agriculture, the theory and practice of
teaching, and such other subjects as may be required by the
State Board of Education. Provided that no applicant shall
be granted such a certificate who has not completed at least
six weeks of professional preparation in a standard institu-
tion, nor shall such certificate be issued to any person under
eighteen years of age. Provided, that this certificate may be
renewed for a period of two years on evidence of successful
experience and professional spirit and completion of not less
than six weeks of additional academic and professional prepa-
ration in a standard institution. Provided further, that this
certificate may be renewed for a second time for a period of
three years, next succeeding or otherwise, on evidence of suc-
cessful experience and professional spirit and completion of an
additional six weeks of academic and professional preparation
in a standard institution, and so on for an indefinite number
of three-year periods, successive or otherwise; but this certifi-
cate may not be issued a second time to the same person on
examination.

11. County superintendents of schools may, with the ap-
proval of the State Superintendent of Schools, in cases of emer-
gency, issue provisional certificates of the different kinds and
grades, but a provisional certificate shall be valid only until
the next State examination, and a provisional certificate may
not be renewed unless such renewal is approved by the State
Superintendent of Schools.

60. No white teacher regularly employed in a public school
of the State of Maryland shall receive a salary of less than
six hundred dollars ($600) per school year. Provided, if such
teacher holds a third grade certificate of the first class and has
taught in the public schools of the State of Maryland for a
period of three years, such teacher shall receive a salary of not
less than six hundred and fifty dollars ($650) per school year.

No white teacher regularly employed in a public school of
the State of Maryland, holding a second grade certificate, shall
receive a salary of less than seven hundred and fifty dollars

($750) per school year. Provided, if such a teacher holds a
second grade certificate of the first class and has taught in
the public schools of the State of Maryland for a period of
three years, such teacher shall receive a salary of not less than

eight hundred dollars ($800) per school year. Provided, if
such teacher holds a second grade certificate of the first class