10 



BULLETIN" 506, U. S. DEPAETMENT OF AGEICULTURE. 



the increasing- cut in the Southern and jSTorthwestern States. x\.bnor- 

 mal conditions in 1914 and 1915 caused departures from the general 

 trend. 



Fig. 2. — Computed total 1915 production 



Though the total number of mills reporting varies greatly with 

 different years, the bulk of the lumber cut was probably reported, 

 since mills not reporting were undoubtedly those of the smallest 



