The Principles of Psychology. Vol. II. [Volume 2] (A System of Synthetic Philosophy. Vol. V. [Volume 5])

648, [4] pp. 8vo. Green pebbled cloth with blind-stamped borders and decorations, gilt titles and rules on spine. A work on psychology by the English Victorian-era philosopher, sociologist, and scientist. He is notable as an early proponent of evolutionary theory (he wrote about evolution before Darwin did), and for coining the term 'survival of the fittest'.