3622 



Chapter 29 



It: 



i ^ 

 I 



^ 2 



6 - 



HARDWOOD LUMBER USED IN 

 MANUFACTURE OF TRAVEL TRAILERS 

 CAMPERS. U.S. 



I960 



1965 



1977 



Figure 29-34. — Hardwood lumber consumed in the United States for manufacture of 

 travel trailers and campers, 1960-1977; census category 3792. (Data from McKeever 

 and Hatfield.^) 



20 



15 



10 



HARDWOOD LUMBER USED IN MANUFACTURE 

 OF BROOMS AND BRUSHES, U.S. 



I960 



1965 



1977 



Figure 29-35A. — Hardwood lumber consumed in the United States for manufacture of 

 brooms and brushes, 1960-1977; census category 3991. (Data from McKeever and 

 Hatfield.^) 



