Chapter 2

IV THE TEACHING OF BIOLOGY 85 By T. W. GALLOWAY, Ph.D., Litt.D. Professor of Zoölogy, Beloit College. Author of _Textbook of Zoölogy_, _Biology of Sex for Parents and Teachers_, _Use of Motives in Moral Education_, etc.

V THE TEACHING OF CHEMISTRY 110 By LOUIS KAHLENBERG, PH.D. Director of the Course in Chemistry and Professor of Chemistry, University of Wisconsin. Author of _Outlines of Chemistry_, _Laboratory Exercises in Chemistry_, _Chemistry Analysis_, _Chemistry and Its Relation to Daily Life_, etc.

VI THE TEACHING OF PHYSICS 126 By HARVEY B. LEMON, Ph.D. Assistant Professor of Physics, University of Chicago

VII THE TEACHING OF GEOLOGY 142 By T. C. CHAMBERLIN, Ph.D., LL.D., Sc.D. Professor and Head of Department of Geology and Director of Walker Museum, University of Chicago. Author of _Geology of Wisconsin_, _The Origin of the Earth_. Editor of _The Journal of Geology_

VIII THE TEACHING OF MATHEMATICS 161 By G. A. MILLER, Ph.D. Professor of Mathematics, University of Illinois. Author of _Determinants_, _Mathematical Monographs_ (co-author), _Theory and Applications of Groups of Finite Order_ (co-author), _Historical Introduction to the Mathematical Literature_, etc. Co-editor of _American Year Book_ and _Encyclopédie des Sciences Mathématiques_

IX PHYSICAL EDUCATION IN THE COLLEGE 183 By THOMAS A. STOREY, M.D., Ph.D. Professor of Hygiene, The College of the City of New York. State Inspector of Physical Training, New York. Secretary-General, Fourth International Congress of School Hygiene, Buffalo, 1913. Executive-Secretary, United States Interdepartmental Social Hygiene Board. Author of various contributions to standard works on physiology, hygiene, and physical training