. Bulletin. Science. 1-Flat 2-Gentle Slope 3-Strong Slope 4-Cliffs 5-Big Rocks 50 -1 00 ^ 40 o 30 - ^ 20 H ^o-\ 0. 2-Plowed 3-Agriculture 4-Roads 5-Grazing 6-ORVs 7-Buildings 8-Garbage _â _ 2 3 4 Topography 2 3 4 5 6 7 Human Impact 8 9 SOn 1-None 2-Organic Humus 3-Leaves/Sticks 4-Logs/Branches. 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 Southern California Academy of Sciences. Los Angeles, Calif. : The Academy

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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectscience