29 

 Trends 



Most of the graphic data in this chapter were provided by D.B. McKeever and 

 C. R. Hatfield. Readers needing further information should refer to their publi- 

 cation (see text footnote' , p. 3580): Trends in the production and consumption of 

 major forest products in the United States. U.S. Dep. Agric. For. Serv., For. 

 Prod. Lab., Madison, Wis. 



Additional data were drawn from research by: 



J. L. Adrian G. A. Cooper G. Reynolds 



American Paper Institute C. C. Hutchins, Jr. R. C. Schlesinger 



T. R. Bellamy P. Koch H. A. Stewart 



H. S. Betts W. G. Luppold R. A. Tufts 



P. Y. Chen W. E. Nelson U. S. Bureau of Census 



A. Clark K. L. Quigley R. F. Wall 



R. P. Whitney 



3579 



