. Goldfish breeds and other aquarium fishes, their care and propagation; a guide to freshwater and marine aquaria, their fauna, flora and management. Aquariums; Goldfish. AQUATIC INSECTS OF FRESHWATER. FIG. 227. Whirligig-beetle, Gyrinus affitiis. 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 Wolf, Herman Theodore, 1855-. Philadelphia, Innes & Sons

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectaquariu, bookyear1908