THE OAKS 67 
In the second class are the red, scarlet, black, pin, 
laurel, and willow oaks. 
The difference in the leaves of these trees is so great 
that we need never mistake one for the other. Notice the 
cut of the red oak and compare it with that of the white 
oak. The latter has rounded lobes, while the red-oak 
leaf has sharp points and the 
fingers of the leaf are indented 
again with smaller teeth. 
The different trees in the 
white-oak family all have 
leaves with rounded lobes, and 
most of those in the red-oak 
group have pointed ones, yet 
there is a difference between 
members of the same family, 
just as among human beings. 
We can tell at a glance 
whether a man is a negro, a . 
Chinaman, orawhiteman. If Fic. 80. Leaf of the Post Oak 
a white man, he may be a Frenchman or an American; 
and again, if an American, he may belong to the Jones 
family. But all the members of the Jones family do not 
look alike and we know one from another. 
This is true of trees. No two are alike, and we can 
tell from observation whether a tree is an evergreen or 
