Bagley, William C. The Educative Process. The Macmillan Company, 1907. 358 pages.

—— Educational Values. The Macmillan Company, 1911. 267 pages.

Bolton, Frederick E. Principles of Education. Charles Scribner's Sons, 1910. 790 pages.

Butler, Nicholas Murray. The Meaning of Education, and Other Essays. The Macmillan Company, 1915. 386 pages. Revised Edition.

Cubberley, Ellwood P. Changing Conceptions of Education. Houghton Mifflin Company, 1909. 70 pages.

Davenport, Eugene. Education for Efficiency. D. C. Heath & Company, 1909. 184 pages.

Dewey, John. Democracy and Education: An Introduction to the Philosophy of Education. Macmillan, 1916. 434 pages.

Freeman, Frank N. Experimental Education. Houghton Mifflin Company, 1916. 220 pages.

—— Psychology of the Common Branches. Houghton Mifflin Company, 1916. 275 pages.

—— How Children Learn. Houghton Mifflin Company, 1917. 322 pages.