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[ This, Mr. Busk has pointed out, is probably the notch for the frontal nerve. The coronal and sagittal sutures are on the exterior nearly closed, and on the inside so completely ossified as to have left no traces whatever, whilst the lambdoidal remains quite open. The depressions for the Pacchionian glands are deep and numerous; and there is an unusually deep vascular groove immediately behind the coronal suture, which, as it terminates in the foramen, no doubt transmitted a 'vena emissaria'. The course of the frontal suture is indicated externally by a slight ridge; and where it joins the coronal, this ridge rises into a small protuberance. The course of the sagittal suture is grooved, and above the angle of the occipital bone the parietals are depressed.]
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[ The numbers in brackets are those which I should assign to the different measures, as taken from the plaster cast.—G. B.]
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[ 'Verh. des Naturhist'. Vereins in Bonn, xiv. 1857. I am indebted to H. v. Meyer for the following remarks on this subject:—]
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[ Estimating the facial angle in the way suggested, on the cast I should place it at 64 degrees to 67 degrees.—G. B.]
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[ See an excellent Essay by Mr. Church on the Myology of the Orang, in the 'Natural History Review', for 1861.]