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1859
1860
1861
1866
1869
1872

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1859
1860
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1869
1872

on high authority, 1859 1860 1861
by Müller 1866 1869 1872

2 blocks not present in 1859 1860 1861 1866 1869; present in 1872
Helmholtz, whose judgment no one will dispute, after describing in the strongest terms the wonderful powers of the human eye, adds these remarkable words: "That which we have discovered in the way of inexactness and imperfection in the optical machine and in the image on the retina, is as nothing in comparison with the incongruities which we have just come across in the domain of the sensations. One might say that nature has taken delight in accumulating contradictions in order to remove all foundation from the theory of a pre-existing harmony between the external and internal worlds."

wasp or of the 1859 1860 1861
OMIT 1866 1869 1872

attacking animals, 1859 1860 1861 1866 1869
kinds of enemies, 1872

which has 1859 1860 1861 1866 1869
that it has since 1872

for some purpose, such as to produce galls, subsequently 1861 1866
to cause galls subsequently 1859 1860
for some other purpose, such as to produce galls, subsequently 1869
for some other object, such as to produce galls, since 1872

born, 1859 1860 1861 1866 1869
they are born, 1872

meet, as far as we can judge, with this high standard under nature. The correction for the aberration of light is
said
said,
on high authority, not to be perfect even in that most perfect organ, the
human eye.
eye.
If our reason
lead
leads
us to admire with enthusiasm a multitude of inimitable contrivances in nature, this same reason tells us, though we may easily err on both sides, that some other
con- trivances
contrivances
are less perfect. Can we consider the sting of the wasp or of the bee as perfect, which, when used against many attacking animals, cannot be withdrawn, owing to the backward serratures, and
thus
so
inevitably causes the death of the insect by tearing out its viscera?
If we look at the sting of the bee, as having
originally
originally
existed in a remote progenitor as a boring and serrated instrument, like that in so many members of the same great order, and which has been modified but not perfected for its present purpose, with the poison originally adapted for some purpose, such as to produce galls, subsequently intensified, we can perhaps
under- stand
understand
how it is that the use of the sting should so often cause the
insects
insect's
own death: for if on the whole the power of stinging be useful to the
social community,
community,
it will
fulfill
fulfil
all the requirements of natural selection, though it may cause the death of some few members. If we admire the truly wonderful power of scent by which the males of many insects find their females, can we admire the production for this single purpose of thousands of drones, which are utterly useless to the community for any other
purpose,
end,
and which are ultimately slaughtered by their industrious and sterile sisters? It may be difficult, but we ought to admire the savage instinctive hatred of the queen-bee, which urges her
instantly
....
to destroy the young
queens,
queens
her
daughters,
daughters
as soon as born, or to perish herself in the combat; for undoubtedly this