Chapter XI

ON BUD-VARIATION, AND ON CERTAIN ANOMALOUS MODES OF REPRODUCTION AND VARIATION.

BUD-VARIATIONS IN THE PEACH, PLUM, CHERRY, VINE, GOOSEBERRY, CURRANT, AND BANANA, AS SHOWN BY THE MODIFIED FRUIT--IN FLOWERS: CAMELLIAS, AZALEAS, CHRYSANTHEMUMS, ROSES, ETC.--ON THE RUNNING OF THE COLOUR IN CARNATIONS--BUD-VARIATIONS IN LEAVES--VARIATIONS BY SUCKERS, TUBERS, AND BULBS--ON THE BREAKING OF TULIPS--BUD-VARIATIONS GRADUATE INTO CHANGES CONSEQUENT ON CHANGED CONDITIONS OF LIFE--CYTISUS ADAMI, ITS ORIGIN AND TRANSFORMATION--ON THE UNION OF TWO DIFFERENT EMBRYOS IN ONE SEED--THE TRIFACIAL ORANGE--ON REVERSION BY BUDS IN HYBRIDS AND MONGRELS--ON THE PRODUCTION OF MODIFIED BUDS BY THE GRAFTING OF ONE VARIETY OR SPECIES ON ANOTHER--ON THE DIRECT OR IMMEDIATE ACTION OF FOREIGN POLLEN ON THE MOTHER-PLANT--ON THE EFFECTS IN FEMALE ANIMALS OF A FIRST IMPREGNATION ON THE SUBSEQUENT OFFSPRING--CONCLUSION AND SUMMARY ... Page 373

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LIST OF ILLUSTRATIONS.

1. DUN DEVONSHIRE PONY, WITH SHOULDER, SPINAL, AND LEG STRIPES ... PAGE
56
2. HEAD OF JAPAN OR MASKED PIG ... 69
3. HEAD OF WILD BOAR, AND OF "GOLDEN DAYS," A PIG OF THE YORKSHIRE LARGE
BREED ... 72
4. OLD IRISH PIG, WITH JAW-APPENDAGES ... 75
5. HALF-LOP RABBIT ... 108
6. SKULL OF WILD RABBIT ... 117
7. SKULL OF LARGE LOP-EARED RABBIT ... 117
8. PART OF ZYGOMATIC ARCH, SHOWING THE PROJECTING END OF THE MALAR-BONE,
AND THE AUDITORY MEATUS, OF RABBITS ... 118
9. POSTERIOR END OF SKULL, SHOWING THE INTER-PARIETAL BONE, OF RABBITS
... 118
10. OCCIPITAL FORAMEN OF RABBITS ... 118
11. SKULL OF HALF-LOP RABBIT ... 119
12. ATLAS VERTEBRAE OF RABBITS ... 121
13. THIRD CERVICAL VERTEBRAE OF RABBITS ... 121
14. DORSAL VERTEBRAE, FROM SIXTH TO TENTH INCLUSIVE, OF RABBITS ... 122
15. TERMINAL BONE OF STERNUM OF RABBITS ... 123
16. ACROMION OF SCAPULA OF RABBITS ... 123
17. THE ROCK-PIGEON, OR COLUMBIA LIVIA ... 135
18. ENGLISH POUTER ... 137
19. ENGLISH CARRIER ... 140
20. ENGLISH BARB ... 145
21. ENGLISH FANTAIL ... 147
22. AFRICAN OWL ... 149
23. SHORT-FACED ENGLISH TUMBLER ... 152
24. SKULLS OF PIGEONS, VIEWED LATERALLY ... 163
25. LOWER JAWS OF PIGEONS, SEEN FROM ABOVE ... 164
26. SKULL OF RUNT, SEEN FROM ABOVE ... 165
27. LATERAL VIEW OF JAWS OF PIGEONS ... 165
28. SCAPULAE OF PIGEONS ... 167
29. FURCULAE OF PIGEONS ... 167
30. SPANISH FOWL ... 226
31. HAMBURGH FOWL ... 228
32. POLISH FOWL ... 229
33. OCCIPITAL FORAMEN OF THE SKULLS OF FOWLS ... 261
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34. SKULLS OF FOWLS, VIEWED FROM ABOVE, A LITTLE OBLIQUELY ... 262
35. LONGITUDINAL SECTIONS OF SKULLS OF FOWLS, VIEWED LATERALLY ... 263
36. SKULL OF HORNED FOWL, VIEWED FROM ABOVE, A LITTLE OBLIQUELY ... 265
37. SIXTH CERVICAL VERTEBRAE OF FOWLS, VIEWED LATERALLY ... 267
38. EXTREMITY OF THE FURCULA OF FOWLS, VIEWED LATERALLY ... 268
39. SKULLS OF DUCKS, VIEWED LATERALLY, REDUCED TO TWO-THIRDS OF THE
NATURAL SIZE ... 282
40. CERVICAL VERTEBRAE OF DUCKS, OF NATURAL SIZE ... 283
41. PODS OF THE COMMON PEA ... 328
42. PEACH AND ALMOND STONES, OF NATURAL SIZE, VIEWED EDGEWAYS ... 337
43. PLUM STONES, OF NATURAL SIZE, VIEWED LATERALLY ... 345

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THE

VARIATION OF ANIMALS AND PLANTS

UNDER DOMESTICATION.

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