No doubt both his premises and conclusions are open to criticism at various points.

It is, indeed, not unlikely that the plan whereby he proposes to limit the "fertility of the Unfit" may come with a sort of shock to some readers.
It is, perhaps, well that it should, for it may lead to thought and criticism.

In any case, this policy of drift must be dropped and Dr.
Chapple's remedy, or some other, promptly adopted.

A preface is not the place to discuss the pro's and con's of Dr.Chapple's treatise.

My main object in this foreword is to commend to the public who take an interest in this grave problem a discussion of it, which is alike timely and thorough and reverent.