1040 LAWS OF MARYLAND. [CH. 506

experience as teacher in an approved high school; not less than
six hundred dollars ($600) for a person, holding a first class
certificate, of three years' experience as teacher in an approved
high school; not less than seven hundred dollars ($700) for a
person, holding a first class certificate, of five years' expe-
rience as a teacher in an approved high school; and not less
than eight hundred dollars ($800) for a person, holding a
first class certificate, of eight years' experience as teacher in
an approved high school. Experience prior to the year 1910
shall not be considered in determining the salary of the prin-
cipal and assistant teachers; (e) provision shall be made for
manual or industrial training and domestic science courses,
and also for an agricultural course, as may be determined by
the county board of education, on the approval of the state
superintendent of schools; (f) no person shall be employed as
principal or assistant teacher not holding the appropriate cer-
tificate as provided for in Chapter 8 of this Article. The
course of instruction in schools of the second group may be
extended to four years by the county board of education on the
approval of the state superintendent of schools, by the employ-
ment of such additional teacher or teachers, as may be required
by the state superintendent of schools; provided, that the
salary of such additional teacher or teachers shall be paid
wholly by the county board of education; and in the schools of
the second group, where the course of instruction has been so
extended to a four-year course, the graduates shall receive the
same recognition as graduates of schools of the first group. No
promotions of high school pupils from one grade to another, or
graduation, shall be made without the approval of the princi-
pal and the county superintendent.

126A. To encourage the idea that no person should enter
upon the duties of teaching without special training for the
work, the county board of education of any county, with the
approval of the state superintendent of schools, may inaugu-
rate in one approved high school of the first group, a two
years' teachers' training course for students having completed
successfully the tenth year grade, and who wish to prepare
themselves for teaching. The state board of education shall
prescribe the course and all necessary regulations to make the
work of the course effective.

127. It shall be the duty of the state superintendent of
schools, or an assistant designated by him, to make an annual
inspection of all high schools receiving state aid, and also such