[Illustration: TELLING THE STORY OF LIFE; THE PRESENT DAY IDEA OF SEX INSTRUCTION. “O, THOU CHILD OF MANY PRAYERS,”] SELF KNOWLEDGE AND GUIDE TO SEX INSTRUCTION VITAL FACTS OF LIFE FOR ALL AGES A Complete and Comprehensive Guide to Parents for the Proper Instruction of Their Children, Concerning the Delicate Questions of Life; Timely Help for the Boy and Girl, at the Ages of Greatest Danger, with Warnings of the Pitfalls which Lie Hidden in Their Pathway, TOGETHER WITH Vital Information for the Marriageable; Safe, Sane, Scientific Counsel for the Married of all Ages, including Knowledge Vital to those in Middle Life and Declining Years, with a Word of Warning Against the Prevailing Ignorance of God’s Sacred Laws of Sex and Heredity BY PROFESSOR T. W. SHANNON, A.M. International Lecturer on Moral, Social and Reform Topics; Member of Advisory Board World’s Purity Federation; also Author of Eight other Purity Books With Special Chapters by Hon. Stanley Finch, Special Commissioner for The Suppression of the White Slave Traffic, U. S. Department of Justice; B. S. Steadwell, President World’s Purity Federation and Charles W. Eliot, Former President Harvard University INTRODUCED BY B. S. STEADWELL Publisher “The Light,” Official Organ of The World’s Purity Federation PUBLISHED EXCLUSIVELY BY THE S. A. MULLIKIN COMPANY MARIETTA OHIO COPYRIGHTED, 1913, BY THE S. A. MULLIKIN CO. Agents wanted in all English-speaking countries. Address publishers at foot of title page. Dedicated TO THE GRANDFATHERS AND GRANDMOTHERS, TO THE FATHERS AND MOTHERS, TO THE HUSBANDS AND WIVES, TO THE BACHELORS AND MAIDS, TO THE YOUNG MEN AND YOUNG WOMEN, TO THE BOYS AND GIRLS, TO THE BABES THAT BE AND ARE TO BE, THIS BOOK IS AFFECTIONATELY DEDICATED BY THE AUTHOR. [Illustration: YOURS FOR THE UPLIFT OF HUMANITY T.W. Shannon] PREFACE