422 
DIGESTIVE ORGANS AND FOOD 
food substitutes, but there are really no new foods. The use 
of rye flour, corn meal, and such foods, while new to many 
people of this generation, were the most common foods with 
our ancestors as they pioneered and settled the land. We 
are in reality returning to the simpler forms of food rather 
than adding new foods. Find out all that you can about the 
Figure 378. — Flouring-mill where Wheat is Turned into Flour. 
One of these large mills in Minneapolis has the equipment to turn out 
sixteen thousand barrels of flour every twenty-four hours. Photograph 
furnished by the Omaha Chamber of Commerce. 
different kinds of foods that were used by the early settlers 
in your community. 
332. Food Shortage. — Keeping in mind the important fact 
that all foods have to be grown, it is easy to understand how 
there may be a food shortage. If the men who are skilled in 
raising food were all removed from the farms, the store¬ 
houses would in a short time be emptied of their supplies, 
and none would be growing to replace them. This would 
