Vern P. Yerkes

• Blacks Hills ponderosa pine timber
• Softwood plywood in the United States
• Veneer recovery from Black Hills ponderosa pine
• Black Hills Ponderosa pine timber
• Effect of seasonal stem moisture variation and log storage on weight of Black Hills ponderosa pine
• Effect of thinning on form of young-growth Douglas-fir trees
• Occurrence of shrubs and herbaceous vegetation after clear cutting old-growth Douglas-fir in the Oregon Cascades
• Successional trends of lesser vegetation following clearcutting in old-growth Douglas fir stands
• Weight and cubic-foot relationships for Black Hills ponderosa pine saw logs