SCOUTING FOR GIRLS 
319 
“ Wool versus Cotton — Permeability also depends upon 
material. Ordinary cotton and linen goods do not per- 
mit rapid evaporation. They absorb moisture from the 
skin, but hold it up to the limit of saturation. Then, 
when they can hold no more, they are clammy, and the 
sweat can only escape by running down one’s skin. 
“After hard exertion in such garments, if you sit 
down to rest, or meet a sudden keen wind, as in topping a 
ridge, you are likely to get a chill — and the next thing 
is a Tad cold’ or lumbago, rheumatism, or something 
worse. 
“Wool, on the contrary is permeable. That is why (if 
of suitable weight and loose weave) it is both cooler in 
summer and warmer in winter than cloth made of vege- 
table fibre. ‘One wraps himself in a woolen blanket to 
keep warm— to keep the heat in. He wraps ice in a 
blanket to keep it from melting — to keep the heat out / 
In other words, wool is the best material to maintain an 
equable normal temperature.” 
Camp Site 
“The essentials of a good camp site are these: 
1. Pure water. 
2. W ood that burns well. In cold weather there 
should be either an abundance of sound down wood, or 
some standing hard wood trees that are not too big for 
easy felling. 
3. An open spot level enough for the tent and camp 
fire, but elevated above its surroundings so as to have 
good natural drainage. It must be well above any chance 
overflow from the sudden rise of a neighboring stream. 
Observe the previous flood marks 
7. Exposure to direct sunlight during a part of the 
day, especially during the early morning hours. 
8. In summer, exposure to whatever breezes may 
