ON THE ORIGIN OF SPECIES -- INTRODUCTION -- ⠀唀渀琀椀琀氀!B-'B4) -- CHAPTER 1 -- ON THE BREEDS OF THE DOMESTIC PIGEON -- ⠀唀渀琀椀琀氀!B-'B4) -- SELECTION -- CHAPTER 2 -- ⠀唀渀琀椀琀氀!B-'B4) -- CHAPTER 3 -- CHAPTER 4 -- ⠀唀渀琀椀琀氀!B-'B4) -- SEXUAL SELECTION -- ILLUSTRATIONS OF THE ACTION OF NATURAL SELECTION -- ⠀唀渀琀椀琀氀!B-'B4) -- ON THE INTERCROSSING OF INDIVIDUALS -- CIRCUMSTANCES FAVOURABLE TO NATURAL SELECTION -- ⠀唀渀琀椀琀氀!B-'B4) -- EXTINCTION -- DIVERGENCE OF CHARACTER -- ⠀唀渀琀椀琀氀!B-'B4) -- SUMMARY OF CHAPTER -- CHAPTER 5 -- ⠀唀渀琀椀琀氀!B-'B4) -- EFFECTS OF USE AND DISUSE -- ACCLIMATISATION -- ⠀唀渀琀椀琀氀!B-'B4) -- CORRELATION OF GROWTH -- SUMMARY -- ⠀唀渀琀椀琀氀!B-'B4) -- CHAPTER 6 -- ON THE ABSENCE OR RARITY OF TRANSITIONAL VARIETIES -- ⠀唀渀琀椀琀氀!B-'B4) -- ON THE ORIGIN AND TRANSITIONS OF ORGANIC BEINGS WITH PECULIAR HABITS AND STRUCTURE. -- ORGANS OF EXTREME PERFECTION AND COMPLICATION. -- ⠀唀渀琀椀琀氀!B-'B4) -- ORGANS OF LITTLE APPARENT IMPORTANCE. -- SUMMARY OF CHAPTER. -- ⠀唀渀琀椀琀氀!B-'B4) -- CHAPTER 7. -- SLAVE-MAKING INSTINCT. -- ⠀唀渀琀椀琀氀!B-'B4) -- CELL-MAKING INSTINCT OF THE HIVE-BEE. -- SUMMARY. -- ⠀唀渀琀椀琀氀!B-'B4) -- CHAPTER 8. -- LAWS GOVERNING THE STERILITY OF FIRST CROSSES AND OF HYBRIDS. -- ⠀唀渀琀椀琀氀!B-'B4) -- CAUSES OF THE STERILITY OF FIRST CROSSES AND OF HYBRIDS. -- FERTILITY OF VARIETIES WHEN CROSSED, AND OF THEIR MONGREL OFFSPRING. -- ⠀唀渀琀椀琀氀!B-'B4) -- HYBRIDS AND MONGRELS COMPARED, INDEPENDENTLY OF THEIR FERTILITY. -- SUMMARY OF CHAPTER. -- ⠀唀渀琀椀琀氀!B-'B4) -- CHAPTER 9. -- ON THE LAPSE OF TIME. -- ⠀唀渀琀椀琀氀!B-'B4) -- ON THE POORNESS OF OUR PALAEONTOLOGICAL COLLECTIONS. -- ON THE SUDDEN APPEARANCE OF WHOLE GROUPS OF ALLIED SPECIES. -- ⠀唀渀琀椀琀氀!B-'B4) -- ON THE SUDDEN APPEARANCE OF GROUPS OF ALLIED SPECIES IN THE LOWEST KNOWN FOSSILIFEROUS STRATA. -- CHAPTER 10. -- ⠀唀渀琀椀琀氀!B-'B4) -- ON EXTINCTION. -- ON THE FORMS OF LIFE CHANGING ALMOST SIMULTANEOUSLY THROUGHOUT THE WORLD. -- ⠀唀渀琀椀琀氀!B-'B4) -- ON THE STATE OF DEVELOPMENT OF ANCIENT FORMS.

ON THE SUCCESSION OF THE SAME TYPES WITHIN THE SAME AREAS, DURING THE LATER TERTIARY PERIODS. -- ⠀唀渀琀椀琀氀!B-'B4) -- SUMMARY OF THE PRECEDING AND PRESENT CHAPTERS. -- CHAPTER 11. -- ⠀唀渀琀椀琀氀!B-'B4) -- MEANS OF DISPERSAL. -- DISPERSAL DURING THE GLACIAL PERIOD. -- ⠀唀渀琀椀琀氀!B-'B4) -- CHAPTER 12. -- ON THE INHABITANTS OF OCEANIC ISLANDS. -- ⠀唀渀琀椀琀氀!B-'B4) -- SUMMARY OF LAST AND PRESENT CHAPTERS. -- CHAPTER 13. -- ⠀唀渀琀椀琀氀!B-'B4) -- MORPHOLOGY. -- EMBRYOLOGY. -- ⠀唀渀琀椀琀氀!B-'B4) -- RUDIMENTARY, ATROPHIED, OR ABORTED ORGANS. -- SUMMARY. -- ⠀唀渀琀椀琀氀!B-'B4) -- CHAPTER 14.