Measures and yields of products and residues 



3361 



Table 27-40 — Gross volume of yellow-poplar trees, Scribner log scale to an 8-inch top 

 diameter inside bark, related to dbh and total tree height (Schnur 1937)'-^'^ 



'Scaled in 16-foot log lengths with trimming allowance of 0.3 foot; additional top sections scaled 

 as fractions of a 16-foot, 8.0-inch log. Stump height 1.0 foot. 

 ^Heavy lines indicate limits of basic data. 

 ^Trees measured were in Ohio, Pennsylvania, Virginia, and West Virginia. 



Table 27-41 — Board foot volumes by Scribner rule in second-growth yellow-poplar 

 trees of six heights (McCarthy 1933)''^ 



'Volume scaled by Scribner rule from taper diagrams. Stump 1 foot high and top 6 inches in 

 diameter inside bark. 



2n 



'^Trees sampled in Fairfax County, Va. and Pike County, Ohio. 



