R. T. Trall - Sexual Physiology - 1920

Sex education formally became known as sex education during the late Progressive Era (1880-1920) in the United States.

While this work aims and claims to be, so far as anatomical and physiological problems are concerned, rigidly scientific, and to be posted, up to the hour of going to press, in all the discoveries of this rapidly advancing age , so far as they come within the scope of its plan and purpose, its style, arrangement and application are addressed to the popular rather than to the professional reader. Editors and medical gentlemen , therefore , who honor the work with notices and criticisms, will please bear in mind the fact that its sole object is to instruct the masses of. No pulling of the spine, very little shelf wear, text is clear, speckle head, hundred of black and white illustrations, also 10 pages of Advertisement, no soiling or writing.