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Capítol XIV. Mutual Affinities of Organic Beings : Morphology : Embryology : Rudimentary Organs. | |
| Classification, groups subordinate to groups — Natural system — Rules and difficulties in classification, explained on the theory of descent with modification — Classification of Varieties — Descent always used in classification — Analogical or adaptive characters — Affinities, general, complex, and radiating — Extinction separates and defines groups — Morphology, between members of the same class, between parts of the same individual — Embryology, laws of, explained by variations not supervening at an early age, and being inherited at a corresponding age — Rudimentary organs; their origin explained — Summary | 363-403 |
Capítol XV. Recapitulation and Conclusion. | |
| Recapitulation of the objections to the theory of Natural Selection — Recapitulation of the general and special circumstances in its favour — Causes of the general belief in the immutability of species — How far the theory of Natural Selection may be extended — Effects of its adoption on the study of Natural History — Concluding remarks | 404-429 |
Glossary of Scientific Terms |
430 |
Index |
443 |
