The Appeal. [volume] (Saint Paul, Minn. ;) 1889-19??, 1889-03-02

d Sudll or OF a COlQ-OlOOQeQ vertebrate.
1t is certainly very marvellous adap-
tation to the animals circumstances
All its fires burn lower; there is a sur
prising economy of the living fuel, and,
consequently, little or no waste. Its
establishment is reduced, it's scale of
living contracted, its expenditure
made to suit it's income, or rather its
want of income. The astonishing thing
is that an animal, with all the organs
and functions of mans own class, can
do this and still keep alive and ready
to begin it's active summer existence,
none the worse for it's long, death-like
, trance.
The explanation is that the winter
| sleepers have resources within them
| selves. The stores that some of them,
| like the vole and the hamster, lay up
| in their holes underground are not in
tended as food during the winter; nor
is it probable that the honey stored by
bees is ordinarily SO intended. In
those cases where an external store is
| provided it seems rather to serve as q
| supply for the first days or weeks
after waking, when the creatures would
| not have the strength, even if they had
the opportunity of going in search of
their food. The real winter store is
| within them. A winter-sleeper, such as
the bat, or the dormouse, or the marmot
feeds upon itself. The case is not the
same as in a sheep buried in a snow
drift, or as in the famous case of Mar
tells fat pig. These animals also feed
upon themselves, but their life goes on
at full blast, their breathing and their
other functions being hardly less active
than usual The hibernator makes
fewer calls upon it's husbanded re.
sources. The great and necessarily
active muscle of the heart is the only
tissue that needs to be supplied with
force-producing material, although all
the muscles get a share of the muscle
food that is in the blood, and are in a
peculiarly overcharged or irritable
state in consequence OF having nothing
to spend their force upon: The grand
resource of the winter sleeper is its
store of fat. It accumulates a quite
unusual amount of fat in the summer
and autumn, and disposes it mostly in
certain interior deposits, which are
abundantly provided with blood YES
sells. Now, in ordinary circumstances,
fat is of no use for living force and
heat unless there be plenty of fresh
oxygen constantly carried to it by the
blood to burn it; it is like the combus-
ton of a candle, which can not go on
except in the presence of air. But the
sleeper does not breathe; the blood
carries no fresh oxygen from the air to
the fat or to any other tissue. We
require another kind of process
to convert the fat into force, or
into muscle-food for the heart. The
explanation of this is found in the veg
etable kingdom. Many seeds, and in
less degree, some bulbs and tubers,
have their winter store partly in the
form OF oil or fat; when they begin to
sprout in spring, the first change in
order to make the fat available for the
materials of growth is to have it con-
verified into sugar and starch. That lis
done by means of a fermentation, or
change of state, the ferments being va
rious. The same subtle TRANSFORMED
ton takes place in the winter-sleeper's
store of fat; if it depended upon burn
ing its fat in the usual way, by con.
slant supplies of fresh oxygen, it
would be in the fatal position of hav-
ing abundant assets, but no means oil
realizing them. The liquidation of its
resources is effected by a subtle fer.
ment action, which not only requires
no oxygen, but is actually most effect.
i've when oxy gen is excluded.
And now comes the strangest thing
in the whole problem of winter sleep.
The animal goes into winter quarters
with a great store of fat and comes out
with its fat tissues all wasted, shriveled
and used up. On the other hand il
comes out of it's sleep having lost little
or nothing in weight, and with an
abundant store of another kind, which
has accumulated entirely while it was
asleep. The new store has accumu.
lated at the expense of the fat, or the
J store OF the latter has been SLOWLY
changed into another store of a sub.
stance specially suited to feed the heart
all through the winter and to feed the
organism generally in the first DAYS
after its awaking. This store is the
so-called alternating gland. Itfollows
the same main lines of disposition as
the fat store, being store tissue in
the proper sense of the term. It is oil
the color of liver and is mostly packed
upon the back, between the shoulder
blades, sending extensions under the
collar-bones, and down into the chest
around the heart and the great vessels,
and among the muscles of the neck and
shoulders. 1t is as closely in contact
with the blood-vessels as the fat store
itself; the blood takes up the liquidated
assets from the latter and deposits
them in the former, whence they are
carried as they are wanted to feed the
heart during the long winter, and the
organism generally in the first days oil
bestirring itself. No one has vet
chemically examined that derived OF
secondary store into when the fat is
changed. But there is no doubt that il
is animal starch or sugar, just as in
seeds the oils change into vegetable
starch and sugar. Animal starch OF
sugar is the proper food of muscle
it is the food that the heart has re-
quired the whole winter long to keep