essays of this type deserve re-publication, and should get it, for the sake of his method of presentation and the breadth of his perspective rather than for the sake of adding to technical economic controversy in any possible way.
The following essays are here printed, so far as I have been able to discover, for the first time: The Teacher's Unconscious Success; The Scientific Attitude of Mind; Earth Hunger; Economics and Politics; Purposes and Consequences; Rights; Equality. We have been able to date all of these except the last three. There is no direct evidence as to the time when these were written, but it is safe to say that they come out of the period between 1900 and 1906. The manuscript of these three seems to form part of the studies which preceded "Folkways" and may have been designed originally to form part of that volume.
Although "Earth Hunger" is the title essay, it has seemed fitting to introduce this volume with Professor Sumner's brief autobiographical sketch, and by two essays which, if not strictly autobiographical, yet reveal certain salient characteristics of the man and of his attitude toward his work.
A. G. KELLER
New Haven, Conn.,
September 17, 1913