. Bulletin. Forests and forestry -- United States. Fig. 1.—The Head of a Lumber Flume. Cali Fig. 2.—The Flume in the Mountains. 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. Division of Forestry. Washington : G. P. O.
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