Angle, E.H.1900Malocclusion of the teeth . S. S. White Dental Manufacturing Company, Philadelphia, Pa.
2.
Bogue, E.A.1912-13; 1916-17 Orthodontia of the deciduous teeth. Dental Digest (several papers; see volume indices).
3.
Conklin, E.G.1917Heredity and environment . Princeton University Press.
4.
Dwight, Thomas1912Thoughts of a Catholic anatomist . Longmans, Green and Company, New York.
5.
Fiske, John1902Outlines of cosmic philosophy . Houghton Mifflin Company, New York.
6.
Hall, G.S.1911Adolescence (vol. I). D. Appleton and Company, New York.
7.
Hellman, Milo1919Dimensions versus form in teeth and their bearing on the morphology ofthe dental arch. International Journal of Orthodontia and Oral Surgery, v, p. 615.
8.
Keibel, F. AND Mall, F.P.1910Human embryology (vol. I). J. B. Lippincott Company, Philadelphia, Pa.
9.
Leavitt, P.A.1919Report of a study of skulls at the Peabody Museum, Harvard University. Journal of Dental Research, i, p. 463.
10.
Osborn, H.F.1917Origin and evolution of life. Hale Lectures of the National Academy of Sciences, Washington. Charles Scribner's Sons , New York.
11.
Tyler, J.M.1910Growth and education. Houghton Mifflin Company, New York.