The Eugenic Marriage, a personal guide to the new science of better living and better babies, volume 1 of 4 (1913),

First published in 1916. "Despite the fact that much has been written during the past two or three years with reference to Eugenics, it is quite evident to any one interested in the subject that the average intelligent individual knows very little about it so far as its scope and intent are concerned. This is not to be wondered at, for the subject has not been presented to the ordinary reader in a form that would tend to encourage inquiry or honest investigation. The critic and the wit have deliberately misinterpreted its principles, and have almost succeeded in masking its supreme function in the garb of folly."