[17.] Ayres, L.P. "The Effect of Physical Defects on School Progress," Psychological Clinic, 3:71.

[18.] Gulick, L.H., Ayres, L.P. Medical Inspection in the Schools, p. 194.

[19.] Standards of The North Central Association of Colleges and Secondary Schools.

[20.] Hall-Quest, A.L., in Johnson's Modern High School, p. 270.

[21.] King, I. The High School Age, p. 195.

[22a,] [22b.] VanDenburg, J.K. The Elimination of Pupils from Public Secondary Schools, p. 113.

[23.] Slattery, M. The Girl in Her Teens, p. 20.

[24.] Wooley, H.T. "Facts About the Working Children of Cincinnati," Elementary School Teacher, 14:135.

[25.] Report of Commission on Industrial and Technical Education (Mass.), 1906, p. 92.

[26.] Barrows, Alice P. Report of Vocational Guidance Survey (New York City), Public Education Association, New York City, Bull. No. 9, 1912.