Bul. 1200, U. S. Dept. of Agriculture. PLATE XII1.—X° 
Fic. 1.—Stand of western red cedar and western hemlock, replacing Douglas fir, during the first 
generation. Dead Douglas fir snags appear in the center. 
Fic. 2.—Analmost purestand of Douglas fir 50 years old; western hemlock and western red cedar 
in the understory. On this area the Douglas fir forest will be almost completely replaced by 
western red cedar and western hemlock at the end ofthe first generation if itis left undisturbed. 
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