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See page in:
1859
1860
1861
1866
1869
1872

Compare with:
1859
1860
1861
1866
1869

→ the lower organisms 1869 1872
generally 1859 1860 1861 1866
→ that of the 1872
the 1859 1860 1861 1866 1869
→ most lowly organised 1872
many low 1859 1860 1861 1866
almost all lowly organised 1869
→ OMIT 1869 1872
is apt to 1859 1860 1861 1866
→ lower 1869 1872
low and slowly-changing 1859 1860 1861 1866
→ generally related 1869 1872
related (with the exceptions before specified) 1859 1860 1861 1866
→ which live on 1869 1872
on 1859 1860 1861 1866
→ lands,— the striking relationship between the inhabitants of islands and those 1869 1872
lands, though these stations are so different— the very close relation 1859
lands, though these stations are so different,— the very close relation 1860 1861 1866
→ nearest mainland— the still closer relationship 1869 1872
distinct species which inhabit the islets 1859 1860 1861 1866
→ distinct inhabitants 1869 1872
same archipelago,— and especially the striking relation 1859 1860 1861 1866
→ islands in the same archipelago— are inexplicable on the ordinary view 1869 1872
inhabitants of each whole archipelago or island to those 1859 1860 1861 1866
→ OMIT 1869 1872
nearest mainland,— are, I think, utterly inexplicable on the ordinary view of the 1859 1860 1861 1866
→ if we admit 1869 1872
on the view of 1859 1860 1861 1866
→ OMIT 1869 1872
modification and better 1859 1860 1861 1866
→ probably occurred,— 1869 1872
occurred within the same period; 1859 1860 1861 1866
→ transport,— 1872
transport,— a subject which has hardly ever been properly experimentised on; 1859 1860
transport,— a subject which has hardly ever been properly experimented on; 1861 1866
trans- port,— 1869
→ and this is a very important consideration, how 1872
how 1859 1860 1861 1866 1869
→ tracts,— 1869 1872
tracts, I think 1859 1860
tracts, 1861 1866
→ is not insuperable in 1869 1872
in 1859 1860 1861 1866
→ common parents. 1869 1872
the same parents, are not insuperable. 1859 1860 1861 1866
→ of all kinds, and 1869 1872
and 1859 1860 1861 1866
→ have changed very 1869 1872
change most 1859 1860 1861 1866
within each great
class,
class
→the lower organisms change at a slower rate than the
higher
higher;
forms; and
forms;
....
consequently
the
they
lower forms
....
will have had a better chance of ranging widely and of still retaining the same specific character. This fact, together with →that of the seeds and eggs of →most lowly organised forms being very minute and better fitted for distant
transportation,
transportal,
probably accounts for a law which has long been observed, and which has lately been
admirably
....
discussed by Alph. de Candolle in regard to plants, namely, that the lower any group of organisms
is,
stands,
the more widely it →OMIT
range.
ranges.
The relations just discussed,— namely, →lower organisms ranging more widely than the
high,—
higher,—
some of the species of widely-ranging genera themselves ranging widely,— such facts, as alpine, lacustrine, and marsh productions being →generally related to those →which live on the surrounding low lands and dry →lands,— the striking relationship between the inhabitants of islands and those of the →nearest mainland— the still closer relationship of the →distinct inhabitants of the →islands in the same archipelago— are inexplicable on the ordinary view of the →OMIT independent creation of each species, but are explicable →if we admit colonisation from the nearest
and
or
readiest source, together with the subsequent →OMIT adaptation of the colonists to their new homes.
Summary
Summary
of
of
last
last
the last
and
and
present
present
Chapters .—
Chapter .—
Chapter .
Chapter .
Chapters .
In these chapters I have endeavoured to show, that if we make due allowance for our ignorance of the full effects of
all the
the
....
changes of climate and of the level of the land, which have certainly occurred within the recent period, and of other
similar
....
changes which
may
....
have →probably occurred,— if we remember how
profoundly
....
ignorant we are with respect to the many
and
....
curious means of occasional →transport,— if we bear in
mind
mind,
→and this is a very important consideration, how often a species may have ranged continuously over a wide area, and then have become extinct in the intermediate →tracts,— the
difficulties
difficulty
→is not insuperable in believing that all the individuals of the same species, wherever
located, have
found, are
descended from →common parents. And we are led to this conclusion, which has been arrived at by many naturalists under the designation of single centres of creation, by
some
various
general considerations, more especially from the importance of barriers →of all kinds, and from the analogical distribution of sub-genera, genera, and families.
With respect to
the
....
distinct species
of
belonging to
the same genus, which on
my
our
theory
must
....
have spread from one parent-source; if we make the same
allowance
allowances
as before for our ignorance, and remember that some forms of life →have changed very slowly,