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Some few persons only are double-crowned. The bones of the head are flat, thin, devoid of marrow, and united with sutures indented like a comb. When broken asunder they cannot be united, but the extraction of a small portion is not necessarily fatal, as a fleshy cicatrix forms, and so makes good the loss. We have already mentioned, in their respective1 places, that the skull of the bear is the weakest of all, and that of the parrot the hardest.

1 B. viii. c. 54, and B. x. c. 58. The skull of the bear is not thinner or weaker than that of other animals of its own size; but the skull of the parrot, in proportion to those of other birds, is remarkably hard.

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load focus Latin (Karl Friedrich Theodor Mayhoff, 1906)
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