. A manual of zoology. Zoology. 20-J PORIFERA layer of pavement epithelium which is easily destroyed. This epithelium (earlier called ectoderm) and the connecti\e tissue (mesoilerm) are now regarded as a common layer, 'iiicsccloiicnn,' since the pavement ej)ithelium is often genetically oulv connecti\'e-tissue cells \\'hich have spread o\cr. 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 Hertwig, Richard, 1850-1937; Kingsl
. A manual of zoology. Zoology. 20-J PORIFERA layer of pavement epithelium which is easily destroyed. This epithelium (earlier called ectoderm) and the connecti\e tissue (mesoilerm) are now regarded as a common layer, 'iiicsccloiicnn,' since the pavement ej)ithelium is often genetically oulv connecti\'e-tissue cells \\'hich have spread o\cr. 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 Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929, ed. and tr. New York, H. Holt
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1912
