RETROSPECT 359 



phers were largely mere copyists of Greek con- 

 cepts and discoveries, but with Bacon himself 

 and from his time onward there began to be orig- 

 inal and valuable additions to the evolution con- 

 cept. The subjects along which the great idea 

 advanced may also be followed alphabetically as 

 set forth in the Index as part of the current terms 

 of modern biology; these include abiogenesis, 

 adaptation, affiliation, analogy, anatomy in all 

 its branches, archasthetism, archetype, ascent 

 and descent of life and man, atavism, atomism, 

 balance, biogenesis, biogenetic law, biology, bot- 

 any in several branches, branching evolution, 

 catastrophism, causation, cell doctrine, chance, 

 classification, climate, coloration, compensation, 

 cosmic evolution, creation in all its manifesta- 

 tions, deduction, degeneration, degradation, de- 

 sign, development, divergence, dualism, economy 

 of growth, emhrancliement, embryology ( several 

 theories), entelechy, epigenesis, evolution in all 

 its aspects, experimentalism, extinction, fecun- 

 dity, filament, fihation, finality, fixity, form {vs, 

 matter), fortuity, force, function, generation, 

 genesis, geographic distribution and isolation, 

 germ theory, gradation, habit, heredity, homol- 

 ogy, human hand, induction, inheritance, inter- 

 maxillary bone, irritability, kinetogenesis, La- 

 marckism, materialism, mechanism, metempsy- 

 chosis, migration, milieu, mind, modification, 



