SCOUTING FOR GIRLS 
347 
FIVE QUART PAIL TO NEST CANS. 
fair measure of the relative value of foods. Even the 
solid part of some foodstuffs contains a good deal of 
refuse (potatoes 20 per cent), while others have none. 
“Nutritive Values — The nutritive elements of food- 
stuffs are protein, a little mineral matter, fats, and car- 
bohydrates. Protein is the basis of muscles, bone, ten- 
don, cartilage, skin and corpuscles of the blood. Fats 
and carbohydrates supply heat and muscular energy. 
In other words, the human body is an engine; protein 
keeps it in repair; fats and carbohydrates are the fuel 
to run it. 
“Familiar examples of proteids are lean meat and 
white of egg. The chief food fats are fat meat, butter, 
lard, oil and cream. Carbohydrates are starchy foods 
(flour, cereals, etc.) and sugar ( sweets of almost any 
kind). 
