. The beauties of nature and the wonders of the world we live in. Natural history; Physical geography; Astronomy. ON ANIMAL LIFE 109 Fig. 4 represents the Medusa or free form of this beautiful species. If we pasg to another great group of Zoophytes, that of the Jelly-fishes, we have a very similar case. For our first knowl- edge of the life-history of these Zoophytes we are indebted to the Nor- wegian naturalist Sars. Take, for instance, the common Jelly-fish (Me- dusa aurita) (Fig. 5) of our shores. The egg is a pear-shaped body (i), covered with, fine hairs, by the aid of which it swims abou
. The beauties of nature and the wonders of the world we live in. Natural history; Physical geography; Astronomy. ON ANIMAL LIFE 109 Fig. 4 represents the Medusa or free form of this beautiful species. If we pasg to another great group of Zoophytes, that of the Jelly-fishes, we have a very similar case. For our first knowl- edge of the life-history of these Zoophytes we are indebted to the Nor- wegian naturalist Sars. Take, for instance, the common Jelly-fish (Me- dusa aurita) (Fig. 5) of our shores. The egg is a pear-shaped body (i), covered with, fine hairs, by the aid of which it swims about, the broader end in front. After a while it attaches itself, not as might have been expected by the posterior but by the anterior extremity {2). The cilia then dis- appear, a mouth is formed at the free end, tentacles, first four (j), then eight, and at length as many as thirty (.5^), are formed, and the little creature resembles in essentials the freshwater polyp (Hydra) of our -BougaiDvillea fruticosa, 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 Lubbock, John, Sir, 1834-1913. New York, London, Macmillan and Co.
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