. Der Frosch; zugleich eine Einf in das praktische Studium des Wirbeltier-Krs. Frogs. . 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 Hempelmann, Friedrich, 1878-. Leipzig, W. Klinkhardt

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectfrogs, bookyear1908