4 BULLETIN 768, U. S. DEPARTMENT OF AGRICULTURE. 
LUMBER PRODUCTION BY CLASSES OF MILLS. 
The policy of arbitrarily dividing the reporting mills into classes — 
according to the quantity of lumber cut was followed as in previous 
years. Table 2 shows, by classes, the computed’ number of mills 
reporting and the computed total production for 1909 and for 1912 
CLASS 5-—10,000 M. FT. AND OVER 
Y— 899 MILLS ~(3.62PC) | 
\\ 22. 148.570M. FT. — (6181 Re) W«CW«CQ 
CLASS 43000 10; 3:93e0N ral 
~— 459 MILLS — (I.85PC) 
<9, 500, 502 erie 56.2.) 
CLASS 3-—|000 T0 4999 M FT. 
<— 2352 MILLS — (948.PC) 
<— 4,615,941 MFT.— (12.88 PC) 
CLASS 2-500 TO 999 MFT. 
W7-—3.6889 MILLS - (14.87 PC) 
«KX ~<— 2460,685 M.FT.— (687 PC) 
CLASS in B 499 M.FT. 
: KWH 3,245,541 Mice (906PC) 
Fig. 1.—Relation of mill classes to production in 1917. 
to 1917, inclusive. The figures for 1909 are given for comparative 
purposes because of the exceptionally complete census obtained for 
that year and the belief held by many lumbermen that that year 
marked the high point in lumber production in this country. 
1“Computed,”’ as used in this bulletin, expresses results obtained by the extension of figures based on 
actual returns so as to show totals for approximately all sawmills whether or not reports were received from 
them. 
