LUMBER CUT OF UNITED STATES, 1870-1920. 



25 



computed total production of each of the last six years, 1915 to 1920, 

 inclusive. 



The striking difference in size between Class 5 and Class 1 mills as 

 illustrated in Plate I and Plate II, respectively, helps to explain why 

 it is that more than two-thirds of the aggregate output of American 

 sawmills was produced by 1,302 mills, or only 5.6 per cent of the 

 23,242 computed to have been in operation. The percentage of the 

 cut produced by the class of mills cutting 10,000,000 feet and over 

 annually (class 5) has increased materially during the last 12 years. 

 In 1909 this class of mills produced 43.09 per cent of the total cut 

 for the year, while in 1920 the same class oi mills cut 57.59 per cent 

 of the total. But in general, for the last six years the proportional 

 production by the five mill classes has changed but little. 



Table 2. — Reported ■production oj lumber, 191,9., and computed totals 1915 to 1918, and 



1920, by classes of mills. 





MiUs. 



Computed quantity cut. 



Classes. 



Computed 



number 



operating. 



Percent. 



M feet b. m. 



Per cent. 



All classes: 



1915 



29, 951 

 30,081 

 24,815 

 22, 546 

 29,534 

 23, 242 



100. 00 

 100.00 

 100.00 

 100.00 

 100.00 

 100.00 



37, Oil, 656 

 39, 807, 251 

 35, 831, 239 

 31, 890, 494 

 34, 552, 076 

 33,798,800 



100.00 



1916 



100.00 



1917 



100. 00 



1918 



100. 00 



1919 1 



100.00 



1920 



100. 00 







Class 5; 10,000 M feet and over per year: 



1915 



846 

 925 

 899 

 785 

 792 

 795 



453 

 484 

 459 

 505 

 503 

 507 



3,191 

 3,041 

 2,352 

 2,194 

 3,211 

 2,730 



4,198 

 4,594 

 3,689 

 3,183 

 3,977 

 3,503 



21, 263 

 21, 037 

 17,416 

 15, 879 

 18,3% 

 15,707 



2.82 

 3.08 

 3.62 

 3.48 

 2.68 

 3.42 



1.51 

 1.61 

 1.85 

 2.24 

 1.70 

 2.18 



10.66 

 , 10.11 

 9.48 

 9.73 

 10.87 

 11.75 



14.02 

 15.27 

 14.87 

 14.12 

 13.47 

 15.07 



70.99 

 69.93 

 70,18 

 70.43 

 62.29 

 67.58 



20, 669, 746 

 23, 310, 137 

 22, 148, 570 

 18,970,552 

 18, 814, 099 

 19,466,600 



3, 224, 448 

 3, 513, 767 

 3, 360, 502 

 3, 567, 104 

 3,544,609 

 3, 589, 600 



6,201,864 

 5,858,675 

 4, 615, 941 

 4,270,755 

 5,972,196 

 5,305,900 



2, 941, 264 

 3,096,760 

 2, 460, 685 

 2, 138, 005 

 2,662,855 

 2,341,200 



3,974,334 

 4, 027, 912 

 3, 245, 541 

 2,944,078 

 3,473,750 

 3, 095, 500 



55.84 



1916 



58.56 



1917 



61.81 



1918 



59.49 



19191 



54.45 



1920 



57.59 



Class 4; 5,000 M feet to 9,999 M feet per year: 



1915 



8.71 



1916 



8.82 



1917 



9.38 



1918 



11.19 



1919 » 



10.26 



1920 



10.62 



Class 3; 1,000 M to 4,999 M feet per year: 



1915 



16.76 



1916 



14.72 



1917 



1918.. 



12.88 

 13.39 



19191 



17.28 



1920 



15.70 



Class 2; 500 M to 999 M feet per year: 



1915 



7.95 



1916 



7.78 



1917 



6.87 



1918 



6.70 



1919 1 



7.71 



1920 



6.93 



Class 1; 50 M to 499 M feet per year: 



1915 



10.74 



1916 



10.12 



1917 



9.06 



1918 



9.23 



19191 



10.05 



1920 



9.16 







1 The data shown for 1919 is quantity actually reported cut, and the total for all classes includes 2,655 

 mills or 8.99 per cent cutting under 50 M feet, each reporting a total quantity of 84,567 M feet of 0.25 per cent. 



