2466 ARTICLE 77.

training, or agriculture, may be granted to persons who have completed a
four years' high school course or the equivalent; who have had four years
of additional work of a college grade, approximately one-half of which was
in general academic subjects, and approximately one-half of which was in
the special branch or branches for which the certificate is issued, including
not less than three hundred recitation hours in the theory of education and
in the art of teaching and supervising their particular specialty, and who
have had four years of experience in teaching, two of which were in their
specialty.

(4) A high school principal's certificate, valid throughout the State
for three years, renewable on evidence of successful experience and pro-
fessional spirit, and required in all State-aided high schools of the first
group and schools rated as high schools of the first group by the State
Superintendent of Schools, may be granted to persons who are graduates, of
a standard college or university, or who have had the equivalent in scholastic
preparation; who have had in addition a full year's graduate work at a
standard university, approximately one-third of which was in advanced
study related to high school branches and approximately two-thirds in
education, including high school methods, supervision, and administration,
or who have had the equivalent in scholastic preparation, and who have had
two years' teaching experience.

(5) A high school teacher's certificate in the academic subjects, valid
throughout the State for three years, renewable on evidence of successful
experience and professional spirit, and required in all State-aided high
schools of the first group and all schools rated as high schools of the first
group by the State Superintendent of Schools, may be granted to persons
who are graduates of a standard college or university, or who have had
the equivalent in scholastic preparation; provided that during their college
course at least two high school branches were continuously pursued for
two years; and provided that they have had not less than two hundred
recitation hours of instruction in education, including the aims of secondary
education, and in the methods, observation, and practice teaching of high
school subjects; provided, further, that the State Superintendent of Schools
may in his discretion certificate persons possessing the foregoing qualifica-
tions to teach in the elementary schools; and provided, further, that this
certificate shall be valid for the principalship of a high school either of the
second group or of the third group.

A junior high school teacher's certificate in the academic subjects, valid
throughout the State for three years, renewable on evidence of successful
experience and professional spirit and six weeks' additional preparation in
a standard institution, and valid for assistant teachers in all State-aided
high schools of the second group and for teachers or principals in all State-
aided high schools of the third group, may be granted to persons who have
completed three years of standard college work, or the equivalent, including
six semester hours in professional subjects.

(6) A high school teacher's certificate in the special branches of music,
manual or industrial training, domestic science and art, fine and applied
arts, commercial branches or agriculture, valid throughout the State for