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Kylstra J. A; Tissing, M. O.; van der Maë'n, A.; de Graaf, R. P.
Transactions - American Society for Artificial Internal Organs: April 1962
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Do not even you know that a green drake, and an alderfly, and a dragon-fly, live under water till they change their skins, just as Tom changed his? And if a water animal can continually change into a land animal, why should not a land animal sometimes change into a water animal?

©1962 American Society of Artificial Internal Organs