FORESTRY 323 



which are New York and Pennsylvania; while Michigan, 

 .Minnesota, and other States are following their example. 



185. Reforestation. In many regions where forests 

 have been removed completely, and on the treeless prairies 

 and plains, trees must be started and a forest cover gradu- 

 ally developed. In European countries, where many hill 

 slopes had been cleared of all trees and the soil gullied and 

 washed away, reforestation has been conducted on a large 

 scale. Many a hilly Oriental country, now barren, was once 

 forest-clad and fertile, as Palestine, whose streams have 

 disappeared, and Mesopotamia, once a garden watered by 

 the Euphrates, but now a desert. 



In the United States extensive reforestation is required 

 only on the prairies and plains, where active measures are 

 taken to stimulate tree-planting; and perhaps eventually 

 some real forests may be developed in these treeless regions. 

 It may be well to call attention to the fact that tree-plant- 

 ing, such as "Arbor Day "stimulates, is not forestry; and 

 that the real problem of forestry in the United States to- 

 day is the proper management of existing forests. 



