References 



Andrews, D. F. A robust method for 

 multiple linear regression. Tech- 

 nometrics 16(4):523-531; 1974. 



Campbell, Robert W.; Sloan, Ronald 

 J. Forest stand responses to de- 

 foliation by the gypsy moth. For. 



Sci. Monogr. 19:1-34; 1977. 



Gansner, David A.; Herrick, Owen 

 W.; White, William B. Economic 

 analysis of the gypsy moth in the 

 Northeast. IV. Forest stand hazard 

 ratings for gypsy moth. 1978; 

 USDA For. Serv. Res. Pap. 

 NE-410. 3 p. 



Herrick, Owen W.; Gansner, David 

 A.; DeBald, Paul S. Predicting 

 forest stand losses from the 

 gypsy moth; an application of 

 automatic interaction detection 

 (AID). J. For. 77(2):91-94; 1979. 



Houston, David R.; Valentine, Harry 

 T. Comparing and predicting 

 forest stand susceptibility to 

 gypsy moth. Can. J. For. Res. 

 8{3):447-461; 1977. 



Kegg, John D. The impact of the 

 gypsy moth: Repeated defoliation 

 of oak in New Jersey. J. For. 

 69(12):852-854; 1971. 



Mendel, Joseph J.; DeBald, Paul S.; 

 Dale, Martin E. Tree value con- 

 version standards for hardwood 

 sawtimber. SETs: Stand evaluation 

 tools 2. 1976; USDA For. Serv. 

 Res. Pap. NE-337. 74 p. 



David A. Gansner is a research 

 work unit leader and Owen W. 

 Herrick is a research forester at the 

 Northeastern Forest Experiment 

 Station, Broomall, PA. 



Manuscript received for 

 publication 27 October 1981 



■CrV.S. GOVERNMENT PRINTING OFFICE: 1982- 505-012:36 



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