SILVICULTURAL SYSTEMS. 



28 



United States. Just as the Sprout Forest systems are 

 chiefly useful to produce fuel, posts, ties, and trees of 

 small size, so the Seed Forest S3^stems are producers 

 of sawlogs and large timbers. 



REGULAR SEED FOREST. 



When a tract of woodland is destro3^ed by tire in one 

 of the Rocky Mountain States, it often happens that 



Fig. 12.— Seed forest of lodgepole pine in Idaho. 



the seeds of the lodgepole pine are scattered over it by 

 the wind in prodigious numbers. The seeds germinate 

 abundantly, seedlings spring up, and in a verj^ few 

 years a young even-aged forest of lodgepole pine 

 1116—05 3 



