I can endorse the teachings in Dr. Long's book more fully because I have, for nearly a quarter of a century, been holding similar views, and dispensing similar, though perhaps less explicit, information. I know from long observation that the teaching is wholesome and necessary, and that the results are universally uplifting. Such teachings improve health, prolong life, and promote virtue, adding to the happiness and lessening the burdens of men, on the one hand; on the other, reducing their crimes and vices. A book like this would have proved invaluable to me on my entrance to the married state; but had I had it, I might not have been forced to acquire the knowledge which enables me now to state with all solemnity, that I personally know hundreds of couples whose lives were wrecked for lack of such knowledge, and that I more intimately know hundreds of others to whom verbal teaching along the lines he has laid down, has brought happiness, health and goodness. Dr. Long advances no theories; neither do I. He has found by studying himself and other people, a sane and salutary way of sex living, and fearlessly has prescribed this to a limited circle for a long time. I congratulate him for his perspicacity, temerity, and wisdom. He offers no apology, and there is no occasion for any. He says, "All has been set down in love, by a lover, for the sake of lovers yet to be, in the hope of helping them on toward a divine consummation." That is, he has developed these ideas at home, and then spread them abroad, or, he has found them abroad and brought them home; and they worked. I also speak somewhat _ex experientia_ and have some intimate personal knowledge of many of these things. Therefore, I advocate his doctrine, the more readily, and maintain that humanity needs these ideas as much today as when M. Jules Lemaitre wrote his late introduction to Michelet's _L'Amour_. He said: "_Il ne parait pas, apres quarante ans passes, que les choses aillent mieux, ni que le livre de Michelet ait rien perdu de son a-propos_." Twenty years more have elapsed and things have not yet become much better. Frank sex talks like Dr. Long's teaching are as a-propos today as was Michelet's book when it was written, or when, after forty years had passed M. Lemaitre wrote his introduction.