XI 
THE MASTODON 
r . . who shall place 
A limit to the giant's unchained strength 2?” 
The name mastodon is given to a suited of } 
species of fossil elephants differing from the — 
true elephants, of which the mammoth is an | a} 
example, in the structure of the teeth. In the 
mastodons the crown, or grinding face of — 
the tooth, is formed by more or less regular — | 
A-shaped cross ridges, covered with enamel, — 
while in the elephants the enamel takes the 
form of narrow, pocket-shaped plates, set up-_ 
right in the body of the tooth. Moreover, in — 
the mastodons the roots of the teeth are long 
prongs, while in the elephants the roots are — 
small and irregular. A glance at the cuts will — 
show these distinctions better than they can — 
be explained by words. Back in the past, how- — 
ever, we meet, as we should if there is any truth 
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