. Principles of modern biology. Biology. 420 - Multicellular Animals, Especially Man. 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 Marsland, Douglas, 1899-. New York, Holt, Rinehart and Winston

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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectbiology