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the first dawn of life, all 1859 1860 1861 1866
a very remote period in the history of the world 1869
the most remote period in the history of the world 1872

are found to 1859 1860 1861 1866
have 1869
have been found to 1872

within each country it 1861 1866 1869 1872
it 1859 1860

in each class, which 1861 1866 1869 1872
which 1859 1860

CHAPTER
XIV.
XIII.
MUTUAL AFFINITIES OF ORGANIC BEINGS:
MORPHOLOGY:
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
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.
Classification .
Classification .
FROM the first dawn of life, all organic beings are found to
resembled
resemble
each other in descending degrees, so that they can be classed in groups under groups. This classification is
evidently
evidently
not arbitrary like the grouping of the stars in constellations. The existence of groups would have been of simple
significance,
signification,
if one group had been exclusively fitted to inhabit the land, and another the water; one to feed on flesh, another on vegetable matter, and so on; but the case is widely
different,
different
in nature;
in nature;
for it is notorious how commonly members of even the same sub-group have different habits. In
our
the
second and fourth chapters, on Variation and on Natural Selection, I have attempted to show that within each country it is the widely ranging, the much diffused and common, that is the dominant
species,
species
belonging to the larger
genera,
genera
in each class, which vary most. The varieties, or incipient species, thus
produced
produced,
ultimately