Francis E. Clark, D. D.
“Of exceeding value to every youth just entering upon manhood. It is written reverently but very plainly, and I believe will save a multitude of young men from evils unspeakable.”
John Clifford, D. D.
“One of the best books for dawning manhood that has fallen into my hands. It goes to the roots of human living. It is thoroughly manly. Dr. Stall has laid the rising generation under an immense obligation.”
J. Wilbur Chapman, D. D.
“I bear willing testimony that I believe this book ought to be in the hands of every young man in this country.”
Paul F. Munde, M. D., LL. D.
Professor of Gynæcology in the New York Polyclinic and at Dartmouth College, says:
“I most heartily commend not only the principle but the execution of what it aims to teach.”
Eugene H. Porter, M. D., LL. D.