. Animal physiology. Physiology, Comparative; Physiology, Comparative. INCOMPLETE METAMORPHOSIS IN THE FROG TRIBE. 81 developed, as seen in Fig. 32; and from that time they are nourished at the expense of the tail, which gradually disappears (Fig. 33.) During this period, other important changes are taking place in the interior of the body ; the chief of which is the development of the lungs, and the gradual disuse of the gills, so that the animal be- comes fitted to live on land and breathe air, and is no longer capable of remaining long under water, without coming to the surface to respire.

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. Animal physiology. Physiology, Comparative; Physiology, Comparative. INCOMPLETE METAMORPHOSIS IN THE FROG TRIBE. 81 developed, as seen in Fig. 32; and from that time they are nourished at the expense of the tail, which gradually disappears (Fig. 33.) During this period, other important changes are taking place in the interior of the body ; the chief of which is the development of the lungs, and the gradual disuse of the gills, so that the animal be- comes fitted to live on land and breathe air, and is no longer capable of remaining long under water, without coming to the surface to respire. in Fig. Fig. 35.—Water-Newt. The perfect form of the Frog is shown. 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 Carpenter, William Benjamin, 1813-1885. London : Wm. S. Orr and Co.

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Keywords: ., bookauthorcarpenterwilliambenja, bookcentury1800, bookdecade1840