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164
Glaucus; Or, The Wonders of the Shore
·
Charles Kingsley
87
But
we
must
make
haste;
for
the
tide
is
rising
fast,
and
our
stone
will
be
restored
to
its
eleven
hours’
bath,
long
before
we
have
talked
over
half
the
wonders
which
it
holds.
Look
though,
ere
you
retreat,
at
one
or
two
more.
What
is
that
little
brown
thing
whom
you
have
just
taken
off
the
rock
to
which
it
adhered
so
stoutly
by
his
sucking-foot?
A
limpet?
Not
at
all:
he
is
of
quite
a
different
family
and
structure;
but,
on
the
whole,
a
limpet-like
shell
would
suit
him
well
enough,
so
he
had
one
given
him:
nevertheless,
owing
to
certain
anatomical
peculiarities,
he
needed
one
aperture
more
than
a
limpet;
so
one,
if
you
will
examine,
has
been
given
him
at
the
top
of
his
shell.
{129}
This
is
one
instance
among
a
thousand
of
the
way
in
which
a
scientific
knowledge
of
objects
must
not
obey,
but
run
counter
to,
the
impressions
of
sense;
and
of
a
custom
in
nature
which
makes
this
caution
so
necessary,
namely,
the
repetition
of
the
same
form,
slightly
modified,
in
totally
different
animals,
sometimes
as
if
to
avoid
waste,
(for
why
should
not
the
same
conception
be
used
in
two
different
cases,
if
it
will
suit
in
both?)
and
sometimes
(more
marvellous
by
far)
when
an
organ,
fully
developed
and
useful
in
one
species,
appears
in
a
cognate
species
but
feeble,
useless,
and,
as
it
were,
abortive;
and
gradually,
in
species
still
farther
removed,
dies
out
altogether;
placed
there,
it
would
seem,
at
first
sight,
merely
to
keep
up
the
family
likeness.
I
am
half
jesting;
that
cannot
be
the
only
reason,
perhaps
not
the
reason
at
all;
but
the
fact
is
one
of
the
most
curious,
and
notorious
also,
in
comparative
anatomy.
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