EMERSON C. HARRINGTON, GOVERNOR. 1027

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 teach-
ing, 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 professional spirit, and required in all state-
aided high schools and schools rated as high schools 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 advance study related
to high school branches and approximately two-thirds in edu-
cation, including high school methods, supervision and admin-
istration, or who have had the equivalent in scholastic prepara-
tion, and who have had two years' teaching experience. Pro-
vided that for principals of high schools of the second group,
no teaching experience shall be required.

(5) A high school teacher's certificate in the regular aca-
demic studies, valid throughout the State for three years, re-
newable on evidence of successful experience and professional
spirit, and required in all state-aided high schools and all
schools rated as high schools by the State superintendent of
schools may be granted to persons who are graduates of a stand-
ard 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 pur-
sued 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 studies; pro-
vided further that the State Superintendent of Schools may in
his discretion certificate persons possessing the foregoing quali-
fications to teach in the elementary schools.

(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 three years, renew-
able on evidence of successful experience and professional
spirit, and required in all state-aided high schools and schools
rated as high schools by the State superintendent of schools,
may be granted to persons who have completed a four years