. Contributions to the study of the behavior of lower organisms. Physiology, Comparative; Infusoria; Amoeba; Irritability. Carnegie Institution of Washington, Publication No. Press op Gibson Bros., Washington, D. 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 Jennings, H. S. (Herbert Spencer), 1868-1947. Washington : Carnegie Institution of Washington

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectphysiol, bookyear1904