TREES 51 



much wood do we use up annually in the United States per capita? 

 (19) What is the per capita consumption of France? (20) Of Germany? 

 (21) Of Italy? (22) What is the proportion between what we grow and 

 what we use ? (23) What is the average annual loss in the United States 

 due to forest fires ? (24) What are the chief causes of forest fires in order 

 of their importance? (25) In the hill countries what happens to the soil 

 of a burned-over area ? (26) Do the same trees usually grow in a burned- 

 over area as stood on the ground before the fire? (27) What area do we 

 have in the United States good for nothing but growing forests ? (28) How 

 much of this is now forest-covered ? (29) What is the average area that 

 we plant annually ? (30) How much of this is planted with young trees ? 

 (31) How much with seed ? 



Lumber. Learn to know the following dressed lumber: white pine, 

 Georgia pine, spruce, hemlock, red wood, red cedar, cypress, white wood, 

 hard maple, bird's-eye maple, birch, ash, hickory, oak, walnut, and mahog- 

 any. Examine the furniture and woodwork about the school and the home. 

 Can you tell of what woods it is made ? 



