. The biology of the cell surface. Cytology. Fig. 4.—(after Harrison), a, row of ectoderm cells showing amoeboid ectoplasm; b, c and d are protoplasmic processes in de\-eloping nerve cells. 82. 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 Just, Ernest Everett, 1883-1941. Philadelphia, P. Blakiston's son & co. , inc

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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity