Hunter, _Laboratory Problems in Civic Biology_. American
Book Company.
Overton, _General Hygiene_. American Book Company.
The Gulick Hygiene Series, _Emergencies, Good Health, The
Body at Work, Control of Body and Mind_. Ginn and Company.
Ritchie, _Human Physiology_. World Book Company.
Hough and Sedgwick, _The Human Mechanism_. Ginn and Company.