The etiology of osseous deformities of the head, face, jaws and teeth . apt to bring to light such pecu-liar types of conformation as the crania which we illustrations are from photographs, and are exceptionallyaccurate. The specimen first to be described (Fig. 31) is one of themost interesting crania which we have had the privilege of 138 ETIOLOGY OF OSSEOUS DEFORMITIES OF studying. The subject was a negro criminal of the pettyclass, who spent most of his time in correctionary institu-tions. As might be inferred from the extremely degeneratetype of cranial development, which is he
The etiology of osseous deformities of the head, face, jaws and teeth . apt to bring to light such pecu-liar types of conformation as the crania which we illustrations are from photographs, and are exceptionallyaccurate. The specimen first to be described (Fig. 31) is one of themost interesting crania which we have had the privilege of 138 ETIOLOGY OF OSSEOUS DEFORMITIES OF studying. The subject was a negro criminal of the pettyclass, who spent most of his time in correctionary institu-tions. As might be inferred from the extremely degeneratetype of cranial development, which is here exhibited, he wasof a very low grade of intelligence. After a very precariousexistence this negro committed suicide. In viewing this skull from the front, one is at once struckby the immensely powerful maxillary and malar develop-ment as contrasted with the remainder of the cranium. Theorbits are relatively very capacious. The superior maxilla isrelatively poorly developed, at least as compared with thelower jaw. Rarely, indeed, is such an inferior frontal devel-. Fig. 32. opment found associated with such a pronounced facialdevelopment. As will be seen in connection with the specimen of brachy-cephalic degeneracy, shown in Figs. 48 and 49, the frontaldevelopment in this narrow type of skull may be vastly bet-ter than some specimens with a decided tendency to thebrachycephalic type. The skull at present under consider-ation is the most marked specimen of the dolichocephaliccranium which we have seen. As the horizontal index inthis case is , the extreme variation, according to IsaacTaylor, and others, being from 58 to 98, the extreme type ofthis skull is at once obvious. THE HEAD, FACE, JAWS AND TEETH 139 On viewing this skull laterally (Fig. 32), its strong sim-ilarity to the anthropoids is very striking. This is especiallymarked with respect to the development of the mastoids andthe occipital protuberance; the position of the latter is quitean anomalous one, and the occ
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjecthead, bookyear1894
