xiv Contents 



CHAPTER XIV 

 Coincident and Correlated Variations 



PAGE 



§ I. Correlated Variations 196 



§ 2. Coincident Variation Theory not Sufficient 201 



§ 3. Illustrations of Orthoplasy with Correlated Variation . . . 202 



§ 4. Natural Selection still Necessary 209 



PART III 



CRITICISM AND INTERPRETATION 



CHAPTER XV 



Struggle for Existence and Rivalry 



§ I. Biological Struggle for Existence 213 



§ 2. Sorts of Rivalry 2i8 



§ 3. Conscious Rivalry 219 



§ 4. Economic Rivalry or Competition 221 



CHAPTER XVI 



Lamarckian Heredity and Teleology 



§ I. The Evidence in Favour of Use-inheritance 226 



§ 2. General Effects and Specific Heredity 228 



§ 3. The Origin of Heredity 229 



§ 4. Lamarckism and Teleology 231 



§ 5. Natural Selection not Unteleological 232 



§ 6. Cosmic Purpose and Law ........ 234 



§ 7. The Place of Individual Purpose in Evolution .... 235 



!r 



CHAPTER XVII 



Selective Thinking 



1. The Material of Selective Thinking 239 



2. The Origin of Thought-variations 241 



3. Systematic Determination of Thought 243 



4. The * Platform ' of Determination 245 



5. The Function or Process of Mental Selection; the External World 247 



