. A treatise on rocks, rock-weathering and soils;. Petrology; Soils. Fig. 1. Liparite, nevadite form. Fig. 2. Liparite, rhyolite form. Fig. 3. Liparite, obsidian form. Fig. 4. Liparite, pumiceous 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 Merrill, George P[erkins] 1854-. New York, London, The Macmillan company

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpetrolo, bookyear1913