TREES AND THE GARDEN. 



221 



A WELL-MANAGED FOREST. BRUSH PILED TO PREVENT FIRE. 



hinder the growth of the better specimens near them. 

 No attempt to make a pasture out of a farm wood lot 

 should ever be made. It is impossible to raise a crop 

 of trees successfully and pasture a herd of animals 

 at the same time on the same land. When thus man- 

 aged, the owner of a forest derives a steady, regular 

 income which will go on indefinitely. 



How Trees are Injured. Injury to trees happens 

 in a great many ways. Fire is the principal source of 

 damage, although wind, lightning, animals, fungus 

 growths and extremes of heat and cold often do a great 

 deal of harm. Insects often cause a great amount 

 of trouble, especially in small pieces of woods and 

 shade trees in towns and cities. 



EXERCISE. Bring as many leaves of forest trees as possible to the 

 classroom and see if you cannot identify them. How do the methods 

 that are sometimes practiced in obtaining turpentine and maple sap 

 injure the trees? What was the extent of damage of the last 

 forest fire in your section? Has your State a Forest Commission? 

 The class should take a trip to a forest or woodland, and name the 

 different trees, criticize the method of lumbering, and point out trees 

 that should be cut out to improve the growth of the forest. What 

 trees of your locality are used for lumber? 



