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. ; 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 and Charles W. Eliot ; introduced by B. S. Steadwell.