WORKS OF nERBERT SPENCER, 



runUSJIED DT 



D. APPX^ETOISr AND COMPANY. 



SYSTEM OF PHILOSOPHY. 



I.— FIRST PRINCIPLKS. 



{N'cw and Enlarged Edition.) 

 Part I. — Tfie TJNKNowAnr.F. 

 Paut II.— Laws ok the Knowadle. 



659 pages. Price, $2.50 



II.— THE PRINCIPLES OF BIOLOGY.— VOL, I. 

 Part I. — TtiK Data op Biology. 

 Part II. — Tiik Inductions of Biology. 

 Part III. — The Evolution of Life. 



475 pftgcs. Price, - (2.60 



PRINCIPLES OF BIOLOGY.— VOL. II. 



Part IV. — ^foRrnoLooiCAL Development. 

 Part V. — Physiological Development. 

 Part VI. — Law.s of M'.ltiplication. 



665 pages. Price, $2.60 



III.— THE PRINCIPLES OF PSYCHOLOGY. 



Part I. — The Data of Psychology. 144 pages. Price, • • (O.TB 



Part II. — The Inductions of PsYcnoLOOY. 146 pages. Price, • $<i.7ft 

 Part III. — General Synthesis. 100 pngcs. / „ . 



Part IV.— Special Synthesis. 112 pages. f ^ nee, - • |1.00 



MISCELLANEOUS. 



L— ILLUSTRATIONS OF UNIVERSAL PROGRESS. 

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



IL— ESSAYS: 



Moral, Political, and .Esthetic. 



Ten Essays. S86 pages. Price, $2.50 



III.— SOCIAL STATICS: 

 Or the Conditions Essential to Human Happiness Specified, and the 



First of them Developed. 

 623 pages. Price, l'--60 



IV.— EDUCATION : 



Intellectual, Moral, and Physical. 



283 pages. Price, - • ^^-2' 



v.— CLASSIFICATION OF THE SCIENCES. 

 60 pages. Price, $0.28 



VI.— SPONTANEOUS GENERATION, 4c. 

 16 pages. Price, . . ... » - 



