138 FORESTRY 



off the light and eventually starve them to death. A few are 

 able to grow beneath the shade of others. Sometimes a forest 

 is so dense that it is difficult for young trees of the same species 

 as the forest to get a start, but other trees of a different species 

 and with different light requirements may become established. 



Forest Enemies. The forest has many enemies ; the most 

 destructive is man who may lumber it with great waste, or use 

 it for grazing with great losses to the young growth, or care- 

 lessly set fires by which large areas are destroyed. 



Insects, fungi, wind storms and snow storms also take heavy 

 toll from these natural resources. 



EXERCISES ON FORESTRY 



1. Learn the names of as many trees as possible on your street, in 

 your town, in the park or in a near-by forest tract. 



2. Collect flowers, seeds and leaves of as many treesi as possible. 



3. Forms of Trees. Make a diagram showing the peculiar branch- 

 ing and form of the common trees. 



4. Tree Differences. Make studies in the woods or elsewhere and 

 report on what kinds of trees in your vicinity are the tallest and what 

 kinds are the shortest, what ones make the densest shade, what ones en- 

 dure shade, what >are rapid growers and what are slow growers ? 



5. Study blocks of different kinds of wood and learn to recognize 

 them. Carpenters and other wood workers can help you in this study. 



6. Close and Open Plantings- Compare the shapes of trees of any 

 species in dense plantings with the same in open places. Explain. 



QUESTIONS 



1. What uses are made of the lumber trees in your community? 



2. What fruit - producing trees are found in the forests of your 

 community ? 



3. What nut-producing trees are found in the forests of your com- 

 munity ? 



