Lee R. Dice, Director of the Institute of Human Biology and Professor of Zoology at the University of Michigan, has devoted many years to the study of ecology and its relation to other branches of biology. In Natural Communities he describes the more important methods and concepts of the subject in order to give the reader a better understanding of the importance of ecologic communities to the world of life.

In Man's Nature and Nature's Man, Lee R. Dice tells of the interrelationship of man in his communities, of his plant and animal associates, and of how they act one upon the other. He describes the laws that govern their rise and decline, and the regulatory mechanisms set up by nature and by man himself that promote human progress. He deals with the dynamics of human populations, and with the philosophical and moral bases of human communities. Finally, he casts his eye upon the prospects before us. "A series of well-regulated world communities," he writes, "is not likely to be constructed soon...