Literature Cited 



Blum, Barton M. Age-size relation- 

 ships in all-aged northern hard- 

 woods. Res. Note 125. Broomall, 

 PA: U.S. Department of 

 Agriculture, Forest Service, 

 Northeastern Forest Experiment 

 Station; 1961. 3 p. 



Gibbs, Carter B. Tree diameter a 

 poor indicator of age in West 

 Virginia hardwoods. Res. Note 

 NE-11. Broomall, PA: U.S. 

 Department of Agriculture, Forest 

 Service, Northeastern Forest 

 Experiment Station; 1963; 4 p. 



Leak, William B. Some effects of 

 forest preservation. Res. Note 

 NE-186. Broomall, PA: U.S. 

 Department of Agriculture, Forest 

 Service, Northeastern Forest 

 Experiment Station; 1974. 4 p. 



Leak, W. B. Age distribution in 

 virgin red spruce and northern 

 hardwoods. Ecology. 

 56:1451-1454; 1975. 



Leak, William B. Habitat mapping 

 and interpretation in New 

 England. Res. Paper NE-446. 

 Broomall, PA: U.S. Department of 

 Agriculture, Forest Service, North- 

 eastern Forest Experiment 

 Station; 1982. 28 p. 



Tubbs, Carl H. Age and structure of 

 a northern hardwood selection 

 forest, 1929-1976. Journal of 

 Forestry. 75:22-24; 1977. 



Species List: 



Sugar maple 

 Beech 



Yellow birch 

 Red spruce 

 Striped maple 

 Mountain maple 

 Balsam fir 



Mountain paper birch 



Mountain ash 

 Hobblebush 



Acer saccharum 



Fagus grandifolia 



Betula alleghaniensis 



Picea rubens 



Acer pensylvanicum 



Acer spicatum 



Abies balsamea 



Betula papyrifera var. 

 cordifolia 



Sorbus americana 



Viburnum aJnifolium 



William B. Leak is a research 

 forester studying the management 

 of northern hardwood forests at the 

 Louis C. Wyman Forestry Sciences 

 Laboratory in Durham, NH. 



Manuscript received for publication 11 

 September 1984 



4 



-U.S. GOVERNMENT PRINTING OFFICE: 1985-50 5-028:20012 



