THE ECONOMIC IMPORTANCE OF FORESTS 499 



1. Timber products. 



NOTES ON TABULATION 



(a) U. S. produces 38,000,000 thousand feet of "soft wood" lumber 



per year, and 8,000,000 thousand feet of hard wood lumber. 



(b) The chief kinds are 



yellow pine from Carolina, Georgia, etc. (40 %). 

 white pine from Michigan, Wisconsin, Minnesota, 

 spruce and redwood from the Pacific slope. 



(c) The enormous number of trees cut may be judged when we realize 



that 65 % is wasted in making lumber. 



FIG. 158. Lumber production by varieties, 1910. (U. S. Forest Service.) 



