. Veneer recovery from second-growth Douglas-fir. Veneers and veneering; Douglas fir. (fig. 7). For the Special Peeler and No. 2 Sawmill grades there was no correlation with diameter. The correlation with diame- ter for all log grades was largely a result of No. 3 Sawmill logs. Log recovery ratio.— The recovery ratio of square feet of dry untrimmed ven- eer (3/8-inch basis) per board foot of net log scale showed a significant correlation with diameter (fig. 8) when all log grades were combined. The drop in recovery ratio for large-diameter logs is due to the low recovery in large No. 3 Sawmill
. Veneer recovery from second-growth Douglas-fir. Veneers and veneering; Douglas fir. (fig. 7). For the Special Peeler and No. 2 Sawmill grades there was no correlation with diameter. The correlation with diame- ter for all log grades was largely a result of No. 3 Sawmill logs. Log recovery ratio.— The recovery ratio of square feet of dry untrimmed ven- eer (3/8-inch basis) per board foot of net log scale showed a significant correlation with diameter (fig. 8) when all log grades were combined. The drop in recovery ratio for large-diameter logs is due to the low recovery in large No. 3 Sawmill logs (table 7) and the large percentage of this grade in the upper diameters. No. 2 Sawmill logs, which would comprise a larger proportion of a random sample, had an average recovery ratio of which did not change with diameter. PERCENT OF VENEER 100 RECOVERY RATIO SPECIAL PEELER NO. 2 SAWMILL. 5 10 15 20 25 30 DIAMETER (INCHES) Figure 7.—Veneer grades A through C as a percent of total veneer for all log grades and for individual log grades. NO 2 SAWMILL ONLY. 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 Fahey, Thomas D. (Thomas Daniel), 1935-; Pacific Northwest Forest and Range Experiment Station (Portland, Or. ). Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U. S. Dept. of Agriculture
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Keywords: ., bookcentury1900, bookcollectionbiodiversi, booksubjectdouglasfir
