198 PEINCIPLES OF AMERICAN FORESTRY. 



be to keep out fires, and to cut the trees on the selection 

 pjan, removing the larger ones when they attain a diameter 

 of ten inches. It may, however, be best to cut clean on 

 certain parts at each cutting, but the cuttings in such 

 cases should not be so large but whaL. the trees near by 

 will seed the land. This tree has wonderful regenerative 

 power, and soon covers the soil with a new growth. It 

 is rather impatient of shade, and the young seedlings do 

 not do w^ell under the old trees. It often happens that 

 the cones on Jack Pines remain upon the trees unopened 

 for a long time, and often fire sweeps over the land which 

 scorches them, causing them to open and shed their seeds. 

 As fire is to be avoided on such land, in order to protect 

 the young growth, it may be best to gather the cones, and 

 after roasting them slightly so that the scales open, scatter 

 the cones broadcast over the cut-over portions. If timber 

 is wanted, it would be worth while to try to secure a stand 

 of N orway Pine seedlings. 



5. A has a dry, sandy prairie, the soil of which blows 

 badly when it is broken up. The trees blow out, and it is 

 of very little value for agricultural purposes. Can it be 

 used for forestry? The subsoil is fairly good, and there 

 is standing water at a depth of about ten feet. 



Answer: Under such conditions trees should do well 

 after they have once become established. The difficulty 

 is in getting the land'stocked.""""By seeding the land down 

 to clover, with oats, in the spring of the year, the oats 

 would come up quickly and prevent the blowing out of 

 the soil early in the spring, and the clover would come 

 along and probably make a good showing the next year. 

 After the oats and clover have started, about one-half 

 the land can be planted in strips not more than sixteen 

 feet wide and twenty-four feet apart. If these strips are 

 planted with almost any of our hardy trees, they should 

 do well. For this purpose the White Willow would be 



