Know Thyself
OR
Nature’s Secrets Revealed
OR
Nature’s Secrets Revealed
Know Thyself or Nature’s Secrets Revealed. A Word at the Right Time. To the Boy, Girl, Young Man, Young Woman, Husband, Wife, Father and Mother, also Timely Counsel, Help and Instruction for Every Member of Every Home. Including Important Hints on Social Purity, Heredity, Physical Manhood and Womanhood, by Noted Specialists. Introduced by Bishop Samuel Fallows; Medical Department by W. J. Truitt, M.D. Profusely Illustrated. 1911.