. Die Kalkschwämme. Eine Monographie ... Sponges. '^^. J3 ^ £. Haeckel {üi. Lith Üisälin 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 Haeckel, Ernst Heinrich Philipp August, 1834-1919. Berlin, G. Reimer

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Keywords: ., bookcentury1800, bookdecade1870, booksubjectsponges, bookyear1872