CHARLES DARWIN
THE COMPLETE MAJOR WORKS
(The Authoritative and Unabridged NOOK Edition)
Every Major Work Written by CHARLES DARWIN
Including THE ORIGIN OF SPECIES, THE DESCENT OF MAN, THE VOYAGE OF THE BEAGLE and MORE
(Over 10,000 Pages!)
NOOKBook
EXCERPT
"As all the species of the same genus are supposed, on my theory, to have descended from a common parent, it might be expected that they would occasionally vary in an analogous manner; so that a variety of one species would resemble in some of its characters another species; this other species being on my view only a well-marked and permanent variety.
But characters thus gained would probably be of an unimportant nature, for the presence of all important characters will be governed by natural selection, in accordance with the diverse habits of the species, and will not be left to the mutual action of the conditions of life and of a similar inherited constitution.
It might further be expected that the species of the same genus would occasionally exhibit reversions to lost ancestral characters. As, however, we never know the exact character of the common ancestor of a group, we could not distinguish these two cases: if, for instance, we did not know that the rock-pigeon was not feather-footed or turn-crowned, we could not have told, whether these characters in our domestic breeds were reversions or only analogous variations; but we might have inferred that the blueness was a case of reversion, from the number of the markings, which are correlated with the blue tint, and which it does not appear probable would all appear together from simple variation.
More especially we might have inferred this, from the blue colour and marks so often appearing when distinct breeds of diverse colours are crossed. Hence, though under nature it must generally be left doubtful, what cases are reversions to an anciently existing character, and what are new but analogous variations, yet we ought, on my theory, sometimes to find the varying offspring of a species assuming characters (either from reversion or from analogous variation) which already occur in some other members of the same group.
And this undoubtedly is the case in nature."
TABLE OF CONTENTS
A NATURALIST'S VOYAGE ROUND THE WORLD
THE MOVEMENTS AND HABITS OF CLIMBING PLANTS
THE DESCENT OF MAN
THE AUTOBIOGRAPHY OF CHARLES DARWIN
THE DIFFERENT FORMS OF FLOWERS ON PLANTS OF THE SAME SPECIES
THE EFFECTS OF CROSS & SELF-FERTILISATION IN THE VEGETABLE KINGDOM.
THE EXPRESSION OF THE EMOTIONS IN MAN AND ANIMALS
THE FOUNDATIONS OF THE ORIGIN OF SPECIES
GEOLOGICAL OBSERVATIONS ON SOUTH AMERICA
INSECTIVOROUS PLANTS.
THE LIFE AND LETTERS OF CHARLES DARWIN VOLUME I
THE LIFE AND LETTERS OF CHARLES DARWIN VOLUME II
MORE LETTERS OF CHARLES DARWIN VOLUME I.
MORE LETTERS OF CHARLES DARWIN, VOLUME II
NOTE ON THE RESEMBLANCES AND DIFFERENCES IN THE STRUCTURE AND THE DEVELOPMENT OF THE BRAIN IN MAN AND APES
THE POWER OF MOVEMENT IN PLANTS.
THE FORMATION OF VEGETABLE MOULD THROUGH THE ACTION OF WORMS WITH OBSERVATIONS ON THEIR HABITS.
THE VARIATION OF ANIMALS AND PLANTS
THE VARIATION OF ANIMALS AND PLANTS UNDER DOMESTICATION. VOL. II.
VOLCANIC ISLANDS
A NATURALIST'S VOYAGE ROUND THE WORLD
THE VOYAGE OF THE BEAGLE
ON THE ORIGIN OF SPECIES.
THE ORIGIN OF SPECIES BY MEANS OF NATURAL SELECTION (FINAL EDITION)
