. Levels-of-growing-stock cooperative study in douglas-fir. J__i l i i i i i L O U) CO a> CD E 3 O > B. Hoskins. J i i l i i C2 Figure 40.—Cumulative volume production (including thinnings) in trees larger than indicated diame- ters, to end of fourth treatment period: (A) Skykomish. to age 42: (B) Hoskins. to age 36: (C) Clem- ons, to age 36: and (D) Francis, to age 33. Material removed in calibration cut omitted. Values shown for fixed treatments (1, 3, 5. and 7) and control only. 8 10 12 14 16 18 20 22 24 (inches). Please note that these images are extrac


. Levels-of-growing-stock cooperative study in douglas-fir. J__i l i i i i i L O U) CO a> CD E 3 O > B. Hoskins. J i i l i i C2 Figure 40.—Cumulative volume production (including thinnings) in trees larger than indicated diame- ters, to end of fourth treatment period: (A) Skykomish. to age 42: (B) Hoskins. to age 36: (C) Clem- ons, to age 36: and (D) Francis, to age 33. Material removed in calibration cut omitted. Values shown for fixed treatments (1, 3, 5. and 7) and control only. 8 10 12 14 16 18 20 22 24 (inches). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Curtis, Robert O. cn; Marshall, David D. cn; Pacific Northwest Research Station (Portland, Or. ) cn. [Portland, Or. ] : U. S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station


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