. [Bulletins on forest pathology : from Bulletin , Washington, , 1913-1925]. Trees; Plant diseases. Bui. 1298, U. S. Dept. of Agriculture Plate IX. Fig. 1.—Fresh sound spruce used for experimental grinding in comparison with the infected wood shown in fig. 2 Fig. 2.—Rick of infected spruce wood used for experimental grinding. This was representative of the material toward the base of the pile shown in PI. VI, fig. 3 Fig. 3.—Specific gravity disks cut from the infected spruce shown in fig. 2. Sample 23 was decayed by Lenzites sepiaria and Polystictus abietinus, sample 21 by Stereum
. [Bulletins on forest pathology : from Bulletin , Washington, , 1913-1925]. Trees; Plant diseases. Bui. 1298, U. S. Dept. of Agriculture Plate IX. Fig. 1.—Fresh sound spruce used for experimental grinding in comparison with the infected wood shown in fig. 2 Fig. 2.—Rick of infected spruce wood used for experimental grinding. This was representative of the material toward the base of the pile shown in PI. VI, fig. 3 Fig. 3.—Specific gravity disks cut from the infected spruce shown in fig. 2. Sample 23 was decayed by Lenzites sepiaria and Polystictus abietinus, sample 21 by Stereum sanguinolentum, and sample 19 by a fungus which was not fruiting and hence indeterminable Fig. 4.—Spruce wood about four years old sent to the laboratory for sulphite and soda cooking tests. This wood was rotted mainly by Fomes roseus and was too far gone for commercial use. 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 United States. Dept. of Agriculture. [Washington : U. S. Dept. of Agriculture]
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1913
