Here are a few ideas for the benefit
of the inexperienced camper:
Fig. 1 is a camp fireless
cooker. A large water pail is placed in a soap box, and then
filled in with paper which has been soaked until it spreads
like mortar. The cover of the box must fit tightly and also be
covered with two inches of paper on the inside. The idea is to
heat whatever you want to bake, roast or boil in a smaller
closed pail, and when it is sizzling hot, place it quickly
into the big pail and cover it and the box. It will take the
heat four or five hours to escape on account of the
non-conductivity of the paper, and your food will go on
cooking without any danger of being burned. Fig. 2 is a
roaster made of two pie pans.
The illustration introduces a quartet
of suggestions for keeping the food in good condition. Fig.
1 is a piece of meat covered with gauze and protected from
flying insects by means of netting stretched over small hoops.
In high and dry places it will be found very useful. 
The parts a and b are
just the same, only b is covered with cloth. The
top ends of the cloth fit into the upper pail of water and
thus keep it wet, just as dipping a wick in oil keeps it
soaked. The lower pail is full of drinking water and it is
kept cool by the evaporation of the moisture in the cloth.
Evaporation absorbs heat. Try it and see. Figs. 4 and 5
are other applications of the same idea. The outer pail and
box are perforated and the space between each pair is filled
with loose porous stuff like a sponge. Keep all where the
breeze can strike them. Fig. 3 is a fish preserver. It
is a watertight box, partly submerged to keep it cool. All the
ideas have been tested and found valuable.