A world-famous scientist presents a synthesis of modern views on the principles of evolution. The result of twenty-five years of research, "The Meaning of Evolution" follows the rise and fall of the dynasties of life through the 2,000,000,000 years of the history of earth. It explains what forces have been acting to bring about evolution and re-examines human aims, values, and duties in the light of what science discloses of the nature of man and...