Norman P. Worthington

1903

• Economic considerations in management of Douglas-fir growing stock
• Silvical characteristics of red alder
• Cost of thinning 50-year-old Douglas-fir for pulpwood at Voight Creek experimental forest
• Labor requirements in thinning Douglas-fir and western hemlock on two experimental forests in western Washington
• Light thinning of Douglas-fir does not stimulate regeneration
• Normal yield tables for red alder
• Red alder
• Response to thinning 60-year-old Douglas-fir
• Thirteen years of thinning in a Douglas-fir woodland