Abstract
The major portion of the book presents the biological facts, while the final chapter raises philosophical questions concerning 1) the antithesis between form and substance, 2) the relation of form to aesthetics, and 3) the origin of mind in the goal-seeking quality of life. The author does not pretend to solve the questions he raises; he merely wishes to draw attention to them "at a time when many people fail to recognize them, and when even some biologists have temporarily lost sight of the fundamental importance of the fact of form for the science of life."--V. G. P.