to assume an authoritative tone in these matters, and he is acutely aware of the many defects in detailed knowledge, in temper, and in training these papers collectively display. He is aware that at such points, for example, as the reference to authorities in the chapter on the biological problem, and to books in the educational chapter, the lacunar quality of his reading and knowledge is only too evident; to fill in and complete his design—notably in the fourth paper—he has had quite frankly to jerry-build here and there. Nevertheless, he ventures to publish this book. There are phases in the development of every science when an incautious outsider may think himself almost necessary, when sketchiness ceases to be a sin, when the mere facts of irresponsibility and an untrained interest may permit a freshness, a freedom of mental gesture that would be inconvenient and compromising for the specialist; and such a phase, it is submitted, has been reached in this field of speculation. Moreover, the work attempted is not so much special and technical as a work of reconciliation, the suggestion of broad generalizations upon which divergent specialists may meet, a business for non-technical expression, and in which a man who knows a little of biology, a little of physical science, and a little in a practical way of social stratification, who has concerned himself with education and aspired to creative art, may claim in his very amateurishiness a special qualification. And in addition, it is particularly a business
