70 
ELEMENTARY AGRICULTURE 
The great problem is how to preserve the great forests 
so that the supply may not be exhausted. The Bureau of 
Forestry of the United States Department of Agriculture 
has done much to solve the problems of forestry. 
Uses.—Furniture and finishing lumber are most com¬ 
monly made from oak, walnut, or maple. Elm and gum 
are used for making baskets, boxes, and crates. Syca¬ 
more, ash, and holly provide wood for frames and 
Fig. 46 b.—A row of locust trees. 
handles. Cottonwood may provide a fair grade of lum¬ 
ber for crating and inside work. It is often used along 
with linden and other spongy woods for making paper. 
The average farm woodlot, if planted by hand, will 
probably be more satisfactory if Bois d’arc, locust or 
mulberry are planted closely. These grow rather rapidly, 
and the trees may be thinned as they become large 
enough for posts. 
Location.—Such a woodlot may be located so that 
it will prevent the blowing of sand, protect livestock and 
provide shade. 
