firewood from tree species that are most 

 abundant, and therefore retain the greatest 

 variety of tree species. 



LITERATURE CITED 



Arbib, R. 



1979. The blue list for 1980. Am. Birds 33:830- 

 835. 



Baker, L. D., J. W. Bartok, Jr., L. S. Hamilton, J. P. 

 Lassoie, E. L. Palmer, D. W. Taber, and S. A. Weeks. 



1978. Burning wood. Northeast Reg. Agric. Eng. 

 Serv. Book NE-191. Cornell Univ., Ithaca, N.Y. 

 30 p. 



DeGraaf, R. M., and G. M. Witman. 



1979. Tree, shrubs, and vines for attracting birds. 

 Univ. Mass. Press, Amherst. 194 p. 



Gill, J. D., R. M. DeGraaf, and J. W. Thomas. 



1974. Forest habitat management for non-game 

 birds in central Appalachia. USDA For. Serv. Res. 

 Note NE-192. 6 p. 



Karchesy, J., and P. Koch. 



1978. Energy production from hardwoods grow- 

 ing on southern pine sites. USDA For. Serv. Gen. 

 Tech. Rep. SO-24. 59 p. 



Martin, A. C., H. S. Zim. and A. L. Nelson. 



1961. American wildlife and plants. Dover Publ. 

 Inc., new York. 500 p. 



Petrides, G. A. 



1958. A field guide to trees and shrubs. Peterson 

 Field Guide Series, Houghton Mifflin Co., Boston. 

 431 p. 



Shelton, J., and A. B. Shapiro. 



1978. The woodbumer's encyclopedia. Vermont 



Crossroads Press, Waitsfield. 155 p. 

 Trelease, W. 



1931. Winter botany. Dover Publ., Inc., New 



York. 396 p. 

 U.S. Forest Service 



1978. Firewood for your fireplace. USDA For. 



Serv. Leafl. 559. 2 p. Washington, D.C. 

 Vivian, J. 



1978. Wood heat. Rodale Press, Emmaus, Pa. 

 421 p. 



MANUSCRIPT RECEIVED FOR PUBLICATION 2 JULY 1980 



■^U.S. GOVERNMENT PRINTING OFFICE: 1 9 8 0-603-1 1 1/35 



