E-text prepared by Juliet Sutherland, Jeannie Howse, and the Project Gutenberg Online Distributed Proofreading Team (https://www.pgdp.net) Note: Project Gutenberg also has an HTML version of this file which includes the original illustrations. See 24708-h.htm or 24708-h.zip: (https://www.gutenberg.org/dirs/2/4/7/0/24708/24708-h/24708-h.htm) or (https://www.gutenberg.org/dirs/2/4/7/0/24708/24708-h.zip) +-----------------------------------------------------------+ | Transcriber's Note: | | | | Inconsistent hyphenation in the original document has | | been preserved. | | | | Obvious typographical errors have been corrected. For | | a complete list, please see the end of this document. | | | | Text enclosed by equal signs was in bold face in the | | original (example: =bold=). | +-----------------------------------------------------------+ THE BIOLOGY, PHYSIOLOGY AND SOCIOLOGY OF REPRODUCTION * * * * * Letters from Prominent Educators. "I consider the treatment of the subject the most sane and practical that I know of, and therefore feel that I can conscientiously recommend the book most heartily. There is no subject so much hampered by ignorance, misconception and prejudice as that with which the book deals. I am sure the treatment of the matter will result in a more wholesome and healthful conception of the entire subject."--=Dr. Henry F. Kallenberg, The Institute and Training School of Young Men's Christian Associations.= "Chapter four naturally brings everything to a practical focus and seems to me admirable. Chapter five, too, impressed me as very useful. The topical questions and their answers in the appendix was a very happy thought and adds materially to the value of the book."--=Dr. G. Stanley Hall, President Clark University.= "I have gone through the book carefully and I am greatly pleased with it. I think it is admirably adapted to the needs and temperament of college men, and possibly all men. The topics discussed are of prime importance and interest for young men, the method of presentation is in all respects commendable, and the style is practical and concrete. The book ought to find its way into the hands of a great many young men. It should be in the hands of fathers and even mothers who have sons in the adolescent period."--=Prof. M.V. O'Shea, University of Wisconsin.=