INDEX. 



Accommodation, 30, 158, 189. 



As Acquired Adjustment, 57, 60. 



Necessary in Case of Sudden Change, 60, 62. 



Gives Time for ' ' Coincident Variation, " 6 1 ,62. 



Controls other Influences, 61. 



Supersedes Natural Selection, 61. 



In Man Illustrated, 61, 152. 



May Prevent Coincident Selection, 63. 



Forms of Accommodation, 153. 

 Acquired Characters: 



May Influence Racial Characters, 20-22, 45, 

 153. 



Through Different Habits of Feeding, 20. 



Habit may Control Selection, 21. 



Often Leads to "Coincident Variation," 21. 



And Segregate Association, 45, 48. 



Selection and the Inheritance of, 78. 



Inheritance of, Discussed by Cunningham, 78. 



By C. B. Davenport, 78. 

 Achatinellids: 



Illustrating Problems in Evolution, 37-43. 



Two Hundred Species, 1,000 Varieties, on 

 Oahu, 39. 



Distribution of the Genera. 37, 40, 42. 

 Adaptation: 



As Inherited Adjustment, 56. 



Segregate Adaptation, 87. 

 Adjustment: 



Acquired by the Individual is Accommoda- 

 tion, 60. 



When Inherited is Adaptation, 60. 

 Agamic Evolution Defined, 137. 

 Allogamic 



Organisms, 79. 



Evolution Resting on Six Conditions, 79. 



Evolution Denned, 137. 



Evolution Controlled by Four Principles, 138. 



Forms of the Principles of, 138. 

 Amalgamation of Races, 20, 151, 188, 211. 

 Anticipatory Action, 29-30, 158. 

 Aptitudes: 



As Inherited Characters, 47. 



As Inherited Adaptation, 56, 60. 

 Areas of Distribution: 



Of Hawaiian Snails, 1-3, 37-43. 



Of Arboreal Species most Limited, 2. 



Species a Few Miles Apart do not Intergrade,2 

 Autogamic 



Evolution Defined, 137. 



Mating used by Karl Pearson, 137. 

 Autonomic 



And Heteronomic Influences, 141-144; also 

 Preface. 



Autonomic Continued. 



Influences Include Endonomic and Reflexive, 



141. 



Selection and Isolation, 141. 

 Election and Partition, 142. 

 Demarcation, Intensification, Segregation, 



142. 



Partition and Isolation Illustrated, 143-144. 

 Factors, 158. 



Darwin Recognized One, 158. 

 Baldwin, J. Mork: 



"Organic Selection," 46, 61. 



Use of the Term "Selection," 46. 



Control of Evolution, 49. 



"Social and Ethical Interpretations," 46,142. 



"Development and Evolution," 30, 50, 53, 



61, 189. 



Bateson," Material for the Study of Variation, " 34. 

 Considers Discontinuity of Species as Un- 

 solved, 36. 



As Inconsistent with Theories of Dar- 

 win and Lamarck, 34. 

 Biometrika, 154. 

 Bionomic Laws, 9-22. 



Method of Their Investigation, 9-13. 

 Bionomics: 



Defined, 9. 



As Taught by Distribution of Species, 10. 

 The Principles Involved in Relations of Spe- 

 cies, 1 1 . 

 "Like to Like," Fundamental in Bionomics, 



245-249. 



Blubber Protects the Eskimo, 62. 

 Broca, " Human Hybridity," 166. 

 Brooks, W. K., Variability of Males and of Spe- 

 cies, 190. 



Bumpus, H. C., on Statistics Proving Selection, 34. 

 Castes, New, being Formed in India, 143, 153. 

 Cats of Aquatic Habits, Illustrating Influence of 



Habitudes on Aptitudes, 67-68. 

 Cockerell, T. D. A.: 



On Utility of Specific Characters, 260-261. 

 The Author's Reply to the Same, 261. 

 Coincident Selection, 61. 

 Coincident Variation, 61, 62. 

 Computation 



Of Ratio of Cross-breeds to Pure-breeds, 103- 

 106. 



Compared with Endowment Lessened 



by Taxation, 103-104. 



Of Negative and Positive Segregation, Co- 

 operating, 101-111. 



Of Cumulative Segregation in Plant Species , 

 108-111. 



263 



