Lab
Library
Journal
Shop
Sign in
to keep
Share image
1
164
Glaucus; Or, The Wonders of the Shore
·
Charles Kingsley
137
You
have
two
more
enemies
to
guard
against,
dust,
and
heat.
If
the
surface
of
the
water
becomes
clogged
with
dust,
the
communication
between
it
and
the
life-giving
oxygen
of
the
air
is
cut
off;
and
then
your
animals
are
liable
to
die,
for
the
very
same
reason
that
fish
die
in
a
pond
which
is
long
frozen
over,
unless
a
hole
be
broken
in
the
ice
to
admit
the
air.
You
must
guard
against
this
by
occasional
stirring
of
the
surface,
or,
as
I
have
already
said,
by
syringing
and
by
keeping
on
a
cover.
A
piece
of
muslin
tied
over
will
do;
but
a
better
defence
is
a
plate
of
glass,
raised
on
wire
some
half-inch
above
the
edge,
so
as
to
admit
the
air.
I
am
not
sure
that
a
sheet
of
brown
paper
laid
over
the
vase
is
not
the
best
of
all,
because
that,
by
its
shade,
also
guards
against
the
next
evil,
which
is
heat.
Against
that
you
must
guard
by
putting
a
curtain
of
muslin
or
oiled
paper
between
the
vase
and
the
sun,
if
it
be
very
fierce,
or
simply
(for
simple
expedients
are
best)
by
laying
a
handkerchief
over
it
till
the
heat
is
past.
But
if
you
leave
your
vase
in
a
sunny
window
long
enough
to
let
the
water
get
tepid,
all
is
over
with
your
pets.
Half
an
hour’s
boiling
may
frustrate
the
care
of
weeks.
And
yet,
on
the
other
hand,
light
you
must
have,
and
you
can
hardly
have
too
much.
Some
animals
certainly
prefer
shade,
and
hide
in
the
darkest
crannies;
and
for
them,
if
your
aquarium
is
large
enough,
you
must
provide
shade,
by
arranging
the
bits
of
stone
into
piles
and
caverns.
But
without
light,
your
sea-weeds
will
neither
thrive
nor
keep
the
water
sweet.
With
plenty
of
light
you
will
see,
to
quote
Mr.
Gosse
once
more,
{203}
“thousands
of
tiny
globules
forming
on
every
plant,
and
even
all
over
the
stones,
where
the
infant
vegetation
is
beginning
to
grow;
and
these
globules
presently
rise
in
rapid
succession
to
the
surface
all
over
the
vessel,
and
this
process
goes
on
uninterruptedly
as
long
as
the
rays
of
the
sun
are
uninterrupted.
Marker
Marker
Fine marker
White-out
Fine white-out
Circle
Paint
Unmarker
Hand
Scalpel
Dice
Sieve
Purify
Undo
Redo
Start over
