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210
The Fairy-Land of Science
·
Arabella B. Buckley
154
The
next
thing
you
will
call
to
mind
is
that
this
coal
burns
and
gives
flame
and
heat,
and
that
this
means
that
in
some
way
sunbeams
are
imprisoned
in
it;
lastly,
this
will
lead
you
to
think
of
plants,
and
how
they
work
up
the
strength
of
the
sunbeams
into
their
leaves,
and
hide
black
carbon
in
even
the
purest
and
whitest
substance
they
contain.
Is
coal
made
of
burnt
plants,
then?
Not
burnt
ones,
for
if
so
it
would
not
burn
again;
but
you
may
have
read
how
the
makers
of
charcoal
take
wood
and
bake
it
without
letting
it
burn,
and
then
it
turns
black
and
will
afterwards
make
a
very
good
fire;
and
so
you
will
see
that
it
is
probable
that
our
piece
of
coal
is
made
of
plants
which
have
been
baked
and
altered,
but
which
have
still
much
sunbeam
strength
bottled
up
in
them,
which
can
be
set
free
as
they
burn.
If
you
will
take
an
imaginary
journey
with
me
to
a
coal-pit
near
Newcastle,
which
I
visited
many
years
ago,
you
will
see
that
we
have
very
good
evidence
that
coal
is
made
of
plants,
for
in
all
coal-mines
we
find
remains
of
them
at
every
step
we
take.
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