THE FOREST OKGANISM. 



217 



Fig". 61. Mixed Hardwoods on Lower Levels. Spruce and Balsam Dominate 



on Hig-her Elevations. Mt. Mclntyre, Adirondack Mountains, New York. 



U. S. Forest Service. 



Fiy. 62 Pcrub Growth on Mountain Top. Mt. Webster, 

 New Hampshire. U. V. Forest Sen ice. 



