. Bulletin. Forests and forestry -- United States. Fig. 58.—Forest circulalioii. obstacles to its flow and gradually pour out near the ground. Its place will be taken by the air above which will settle, and thus there may be set up a forest circulation, as represented in the tigure (Fig. 58). Fig. 59.—Day circulatiou. exactly corresponding to such a system of winds as is found in land or sea breezes, or may be found over a lake at night. During clear nights the forest air is generally warmer than that out- *-« *-~«^ '^-^ •^-^ »—*^ •>—? iS^^. Please note that these images are extracted from
. Bulletin. Forests and forestry -- United States. Fig. 58.—Forest circulalioii. obstacles to its flow and gradually pour out near the ground. Its place will be taken by the air above which will settle, and thus there may be set up a forest circulation, as represented in the tigure (Fig. 58). Fig. 59.—Day circulatiou. exactly corresponding to such a system of winds as is found in land or sea breezes, or may be found over a lake at night. During clear nights the forest air is generally warmer than that out- *-« *-~«^ '^-^ •^-^ »—*^ •>—? iS^^. 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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