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 • • • .218 



§ 3. Conscious Rivalry 219 



§ 4. Econonaic 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 



/§"7T7The Place of Individual Purpose in Evolution . . . .235 



CHAPTER XVII 



Selective Thinking 



§ I. 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 



