Spencer's Synthetic Philosophy. (1.) FIRST PRINCIPLES I. THE UNKNOWABLE. II. LAWS OF THE KNOWable. (2.) THE PRINCIPLES OF BIOLOGY. Vol. I. I. THE DATA OF BIOLOGY. II. THE INDUCTIONS OF BIOLOGY. III. THE EVOLUTION OF LIFE. (3.) THE PRINCIPLES OF BIOLOGY. Vol. II. . IV. MORPHOLOGICAL DEVELOPMENT. V. PHYSIOLOGICAL DEVELOPMENT. VI. LAWS OF MULTIPLICATION. (4.) THE PRINCIPLES OF PSYCHOLOGY. Vol. I. . I. THE DATA OF PSYCHOLOGY. II. THE INDUCTIONS OF PSYCHOLOGY. III. GENERAL SYNTHESIS. . $2.00 $2.00 $2.00 . $2.00 |