r sufficient physical exercise to cause
a girl to be blissfully tired at night, and yet awaken refreshed and
full of energy the next morning with a good appetite for breakfast,
until you become accustomed to the outdoor life, it is best to curb your
ambition to outdo the other girls in strength and endurance. It is best
not to overtax yourself by travelling too far on a long trail at one
stretch, or by lifting too heavy a log, stone, or other weight.

=The Camp-Fire=

The outdoor fire in camp bespeaks cheer, comfort, and possibilities for
a hot dinner, all of which the camper appreciates.

=How to Build a Fire=

Choose an open space, if possible, for your fire. Beware of having it
under tree branches, too near a tent, or in any other place that might
prove dangerous. Start your fire with the tinder nearest at hand, dry
leaves, ferns, twigs, cones, birch bark, or pine-knot slivers. As the
tinder begins to burn, add kindling-wood of larger size, always
remembering that the air must circulate under and upward through the
kindling; no fire can live without air any more than you can live
without breathing. Smother a person and he will die, smother a fire and
it will die.

[Illustration: Hard wood.]

Soft woods are best to use after lighting the tinder; they ignite easily
and burn quickly, such as pine, spruce, alder, birch, soft maple,
balsam-fir, and others. When the kindling is blazing put on still
heavier wood, until you have a good, steady fire. Hard wood is better
than soft when the fire is well going; it burns longer and can usually
be depended upon for a reliable fire, not sending out sparks or
sputtering, as do many of the soft woods, but burning well and giving a
fine bed of hot coals. The tree belonging exclusively to America, and
which is the best of the hardwoods, comes first on the hardwood list.
This is _hickory_. Pecan, chestnut-oak, black birch, basket-oaks, white
birch, maple, dogwood, beech, red and yellow birch, ash, and apple wood
when obtainable are excellent.

=Cook-Fire=

Make the cook-fire _small_ and _hot_; then you can work over it in
comfort and not scorch both hands and face when trying to get near
enough to cook, as would be the case if the fire were large.

When in a hurry use dry bark as wood for the cook-fire. Hemlock, pine,
hickory, and other bark make a hot fire in a short time, and water will
boil quickly over a bark fire.

=Log-Cabin Fire=

Start this fire with two g