The frequent occurrence of articles on familial, congenital and idiopathic conditions indicates a growing interest in human heredity, which this book is designed to illuminate. Moore writes in the language of the English countryside, presenting the fundamentals of genetics in terms of horses and dogs and farm-yard stock. There is no laboring with the uninitiated about rats and mice and banana flies, which are of interest only to the specialist. The style is clear and sparkling, amply suited to express the significance of heredity in health or disease.
This book deals in an authoritative manner with the effect of children on the slums, as well as the effect of slums on children; the fecundity of mental defectives, which enables them (like the herring) to compensate for their naturally high death rate in the struggle for survival; the prospects for an adopted child in a good home; the inheritance of special