viii Contents. 



THE EVOLUTION" OF ELECTKIC AND MAGNETIC 

 PHYSICS, 153 



Growth and history of this science ; electricity and magnetism ; 

 their contributions to human welfare ; the future of this sci- 

 ence ; how it illustrates evolutionary principles. 



BY ARTHUR E. KENNELLY. 



THE EVOLUTION OF BOTANY, 173 



Its early and later history ; notable names of its expositors ; its 

 relation to medical science ; its contributions to human wel- 

 fare ; how it illustrates the principles of evolution. 



BY FREDERICK J. WULLING, PH. G. 



THE EVOLUTION OF ZOOLOGY, 203 



Its pre-eminent place under evolution and as including man; 

 why it was necessary to have the brutes for our ancestors ; in 

 them the foundations of body, mind, and soul ; this inheritance 

 in us to be respected ; our duties toward animals ; philanthro- 

 py to widen into philzoony. 



BY REV. JOHN C. KIMBALL. 



FOKM AND COLOK IN" N~ATUKE, . . 235 



The physiology of sense-perception; nature of light and color; 



warning and protective coloration ; fertilization of plants by 



insects ; morphological evidences of evolution. 



BY WILLIAM POTTS. 



THE EVOLUTION" OF OPTICS, 263 



History and growth of the science; the phenomena of vision; 

 evolution of the eye; the eye as an optical instrument; its 

 structural modifications in different animals ; defects of vision ; 

 evolution of the color-sense. 



BY DR. L. A. W. ALLEMAN, M. A. 



THE EVOLUTION OF AKT, 297 



Changing ideals of art in different ages and as related to differ- 

 ent stages of culture ; relations of art to civilization ; to natu- 

 ral science ; to morals ; to religion. 



BY JOHN A. TAYLOR. 



THE EVOLUTION" OF AECHITECTUKE, 321 



Architecture of prehistoric races ; of Egypt and Greece ; of the 

 middle ages and the renaissance ; origin of Gothic architect- 

 ure ; evolutionary phases of the art ; Are we to have an Amer- 

 ican type of architectural development I 



BY REV. JOHN W. CHADWICK. 



