MAN, AS AN ANIMAL 
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without a furnace fire; but we have all read how whole 
sections of France during the war had no heat and that our 
American soldiers were able to adjust themselves to what 
seemed to most of us an almost impossible change. This 
teaches us two important lessons: first, it shows something 
of how early man may have lived; and secondly, the wide 
range of adaptation in the body of modern, civilized man. 
This second lesson is very important because it encourages 
us to undertake physical difficulties which we had thought 
impossible; because we now realize that we can overcome 
them after having the heroic examples of the men, women, 
and children of Belgium and France. 
It is also easier now than ever before to realize how man 
can live in all parts of the earth. When we described 
where frogs, fish, and grasshoppers were to be found, certain 
limits had to be made. Not so with man. He possesses 
something that no animal has — the power to rise above the 
limitations of his surroundings. This he does by building 
a house of ice in the northlands and spreading a tent of cloth 
in Arabia. His constructive ability has led man to invent 
various devices for his protection such as stone, brick, wood, 
or iron houses, something that no animals are able to do in a 
manner that justifies their being compared with man in this 
respect. It is true that birds build nests, but they are always 
built in the same fashion; and it is true that beavers build 
dams, but they are always made of wood. The reason that 
man is able to do more different things than animals is 
because he has a better mind, a mind that can adapt itself 
to many different kinds of work, such as that done by car¬ 
penters, engineers, lawyers, teachers, etc. 
Name some others. Tell what you can about the range of 
adaptation in animals that have not been domesticated by 
man. These simple and well-known comparisons give us 
some indication of the sense in which man and animals are 
similar and it is in this sense that we wish to work out the 
