Note to Revised Edition

I Beg to express my grateful acknowledgments to the large number of clergy, medical men, and parents who have so kindly favored me with most valuable criticisms and suggestions. And I desire to make special mention of Surgeon-General Maunsell, C.B., who as President of the Guild of Sts. Luke, Cosmas, and Damian, has been able to secure for me such a wealth of expert opinion. Here and there I have been unable to follow even a very weighty authority, not, however, because I set my own judgment against it, but because it appears to me to be outweighed by a consensus of equally grave authorities. Some few ideas, too, I have decided to omit as pertaining rather to another book which I have in preparation on the attitude of the Church towards the Eugenic movement.

The Author.