FOREST PROBLEMS. 199 



very desirable, but seedlings of Box-elder, Green Ash, or 

 Norway Pine should also do well. The strips of land in 

 oats and clover will afford sufficient protection to the 

 planted strips to protect them from wind injury. After 

 these strips are established and two or three years old 

 the intervening spaces may be broken up and planted 

 without danger of any further wind injury. 



6. A has a piece of burned-over timber land on which 

 there are scarcely any seed-bearing trees of value; the 

 valuable Pines have all been destroyed by successive 

 burnings. Most of the land is perhaps two miles from 

 any seed-producing White Pine, which was the most prof- 

 itable tree on this land, and is undoubtedly now the most 

 profitable tree that this soil can produce. He would like 

 to have it restocked with White Pine. How should he 

 go to work to do it? 



Answer: Since the seed-bearing trees are so far distant 

 from the land, there is no use depending upon them for 

 restocking the soil with their seedlings, and the Poplar, 

 Birch, and Bird Cherry will undoubtedly soon reign su- 

 preme here, if they do not already. The best treatment 

 is probably to gather White Pine seedlings that are under 

 one foot in height from the near-by forest, if they can be 

 obtained easily, and set them out, about twenty feet apart 

 each way, amongst the brush now found on the land, 

 taking care to make a little clearing, as it were, where 

 each tree is planted. The tendency will be for the worth- 

 less trees now growing on the land to smother out the 

 Pines before they get started, and it will be necessary 

 each summer for several years to go over the land and cut 

 away those trees that are crowding the young Pines too 

 severely. After these young Pines have become established 

 it is probable that they will be able to take care of them- 

 selves in competition with the inferior species, and then 

 the crowding which they receive from the latter will be 



