56 BULLETIN 871, U. S. DEPARTMENT OE AGRICULTURE. 
(4) The rotation for incense cedar must not exceed 165 years in 
the intermediate and 210 years in the optimum range. 
If for any reason the pathological rotations, as determined in this 
paper, must be exceeded in future operations on cut-over lands, 
the forester in making the decision will have a full realization of the 
enormous loss in merchantable timber to be faced through cumulative 
risk of cull due to dry-rot in the stands so handled, 
