WOEKS OF HEEBEET SPEXCEE, 



PUBLISHED BT 



D A.PPLETON AND COMPANY. 



SYSTEM OF PHILOSOPHY 



I.— FIRST PRINCIPLES. 



{New and Enlarged Edition.) 



Piei L — The Unknowable. 



Pi at fl.— Laws op the Knowable. 



559 pages. Price, -.---• . $2.10 



II.— THE PRINCIPLES OF BIOLOGY.— VOL. L 



Pi at T. — The Data op Biology. 

 Part £1. — The Inductions of Biology. 

 Part III. — The Evolution of Life. 



475 pages. Price, .-.-.-.. $2.60 



PRINCIPLES OF BIOLOGY.— VOL. II. 



Part IV. — Morphological Development. 

 Pari V. — Physiological Development. 

 Pari VI. — Laws of Multiplication. 



665 pages. Price, - - . - - • « - $2.50 



III.— THE PRINCIPLES OF PSYCHOLOGY. 



Pari I. — The Data of Psychology. 144 pages. Price, - - $0.75 



Part II. — The Inductions of Psychology. 146 pages. Price, - $0.75 



Part III. — General Synthesis. 100 pages. ) p . 



Part IV.— Special Synthesis. 112 pages. J*nce, . t $1.00 



MISCELLANEOUS. 



I.— ILLUSTRATIONS OF UNIVERSAL PROGRESS. 

 Thirteen Articles. 451 pages. Price, ..... $2.50 



II.— ESSAYS : 



Moral, Political, and ^Esthetic. 



Ten Essays. 386 pages. Price, - - $2.50 



III.— SOCIAL STATICS: 



Or the Conditions Essential to Human Happiness Specified, and the 



First of them Developed. 

 483 pages. Price, $2.5( 



TV.— EDUCATION : 



INTEI LECTUAL, MORAL, AND PHYSICAL. " 



483 pages. Price, $1.25 



V.— CLASSIFICATION OF THE SCIENCES. 

 W pages. Price, ... . ... $0 26 



VI.— SPONTANEOUS GENERATION, &c. 

 6 pages Price. ... . ' •. • $0.2fl 





