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THE
quantity
of
food
required
by
a
normal
man
de-
pends
not
only
upon
his
size,
the
greater
amount
of
muscular
work,
but,
in
the
first
place,
on
the
climate.
A
body
exposed
to
a
cool,
bracing
atmosphere,
or
to
extreme
cold
demands
an
increased
supply
of
food.
The
ravenous
appetite
noticed
among
the
inhabitants
of
cold
climates
may
be
due
in
part
to
the
fact
that
their
food-supply
is
very
irregular,
as
to
make
them
eat
to
excess
when
supplied
with
food.
According
to
Dr.
Hayes,
the
arctic
explorer,
the
daily
ration
of
the
Esquimaux,
is
from
twelve
to
fifteen
pounds
of
meat,
about
one-third
of
which
is
fat.
The
demand
for
fatty
substances
increases
with
the
greater
cold;
hence
the
Esquimaux
as
all
other
inhabitants
of
the
arctic
regions,
do
hardly
know
anything
drinkable
but
fatty
bever-
ages,
such
as
cod-liver
oil,
sperm
oil,
etc.,
of
which
they
use
from
four
to
five
pounds
daily.
The
temperate
zones,
varying
very
much
in
their
temperature
and
moisture
according
to
the
different
elevations,
the
greater
or
lesser
distance
from
oceans,
the
greater
or
lesser
exposure
to
warm
and
cold
winds,
require
what
we
might
name
a
general
diet.
People
in
the
parts
nearer
to
the
tropics
will
regulate
their
diet
in
accordance
with
the
rules
prescribed
for
these,
while those nearer
to
the
arctic
regions
will
have
to