xxxxx Item 1250

LANE MEDICAL LIBRARY OF

STANFORD UNIVERSITY
3 0 FASTEUR

FALO ALTO, CALIFORNIA

OF

ANIMALS AND PLANTS

UNDER DOMESTICATION.

BY CHARLES DARWIN, M.A., F.R.S., &c.

IN TWO VOLUMES.-VOL. II.

WITH ILLUSTRATIONS

LONDON:

JOHN MURRAY, ALBEMARLE STREET.

1868.

The right of Translation is reserved.

LANE LIBRARY. STANFORD UNIVERSITY

LONDON: PRINTED BY WILLIAM CLOWES AND SONS, STAMFORD STREET,

AND CHARING CROSS.

CHAPTER XIL

INHERITANCE.

WONDERFUL NATURE OF INHERITANCE

-

-

PEDIGREES OF OUR DOMESTICATED ANIMALS

INHERITANCE NOT DUE TO CHANCE — TRIFLING CHARACTERS INHERITED —

DISEASES INHERITED PECULIARITIES IN THE EYE INHERITED DISEASES IN THE

HORSE LONGEVITY AND VIGOUR - ASYMMETRICAL DEVIATIONS OF STRUCTURE

POLYDACTYLISM AND REGROWTH OF SUPERNUMERARY DIGITS AFTER AMPU-

TATION CASES OF SEVERAL CHILDREN SIMILARLY AFFECTED FROM NON-AFFECTED

PARENTS - WEAK AND FLUCTUATING INHERITANCE: IN WEEPING TREES, IN

DWARFNESS, COLOUR

HORSES

FLOWERS, COLOUR OF

INHERITANCE IN CERTAIN CASES INHERITANCE OF STRUCTURE

OVERBORNE BY HOSTILE CONDITIONS OF LIFE, BY INCESSANTLY

VARIABILITY, AND BY REVERSION

OF

FRUIT AND

CONCLUSION

NON-

AND HABITS

RECURRING

Page 1

CHAPTER XIII.

INHERITANCE continued

REVERSION OR ATAVISM.

DIFFERENT FORMS OF REVERSION IN PURE OR UNCROSSED BREEDS, AS IN PIGEONS,

FOWLS, HORNLESS CATTLE AND SHEEP, IN CULTIVATED PLANTS — REVERSION IN

FERAL ANIMALS AND PLANTS REVERSION IN CROSSED VARIETIES AND SPECIES-

REVERSION THROUGH BUD-PROPAGATION, AND BY SEGMENTS IN THE SAME FLOWER

OR FRUIT-IN DIFFERENT PARTS OF THE BODY IN THE SAME ANIMAL - THE

ACT OF CROSSING A DIRECT CAUSE OF REVERSION, VARIOUS CASES OF, WITH

INSTINCTS OTHER PROXIMATE CAUSES OF REVERSION LATENT CHARACTERS

SECONDARY SEXUAL CHARACTERS UNEQUAL DEVELOPMENT

TWO

OF THE

SIDES OF THE BODY-ARPEARANCE WITH ADVANCING AGE OF CHARACTERS DERIVED

FROM A CROSS THE GERM WITH ALL ITS LATENT CHARACTERS A WONDERFUL OBJECT

― MONSTROSITIES — PELORIC FLOWERS DUE IN SOME CASES TO REVERSION

28

FIXEDNESS OF CHARACTER APPARENTLY NOT DUE TO ANTIQUITY OF INHERITANCE —

PREPOTENCY OF TRANSMISSION IN INDIVIDUALS OF THE SAME FAMILY, IN CROSSED

BREEDS AND SPECIES; OFTEN STRONGER IN ONE SEX THAN THE OTHER; SOME-

TIMES DUE TO THE SAME CHARACTER BEING PRESENT AND VISIBLE IN ONE BREED

AND LATENT IN THE OTHER- INHERITANCE AS LIMITED BY SEX NEWLY-

ACQUIRED CHARACTERS IN OUR DOMESTICATED ANIMALS OFTEN TRANSMITTED BY

ONE SEX ALONE, SOMETIMES LOST BY ONE SEX ALONE -INHERITANCE AT COR-