. The beauties of nature and the wonders of the world we live in. Natural history; Physical geography; Astronomy. 110 THE BEAUTIES OF NATURE At the same time transverse wrinkles {4) are formed round the body, first near the free extremity and then gradually descend- ing. They become deeper and deeper, and develop lobes or divisions one under the other,. Fig. 5. —Medusa aurita, and progressive stages of development. as at 5. After a while the top ring (and subsequently the others one by one) detaches itself, swims away, and gradually develops into a Medusa {6). Thus, then, the life-his- tory is
. The beauties of nature and the wonders of the world we live in. Natural history; Physical geography; Astronomy. 110 THE BEAUTIES OF NATURE At the same time transverse wrinkles {4) are formed round the body, first near the free extremity and then gradually descend- ing. They become deeper and deeper, and develop lobes or divisions one under the other,. Fig. 5. —Medusa aurita, and progressive stages of development. as at 5. After a while the top ring (and subsequently the others one by one) detaches itself, swims away, and gradually develops into a Medusa {6). Thus, then, the life-his- tory is very similar to that of the Hydroids, only that while in the Hydroids the fixed condition is the more permanent, and the free. 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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