File:The American Museum journal (c1900-(1918)) (18160424815).jpg

Title: The American Museum journal
Identifier: americanmuseumjo14amer (find matches)
Year: c1900-(1918) (c190s)
Authors: American Museum of Natural History
Subjects: Natural history
Publisher: New York : American Museum of Natural History
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: Biodiversity Heritage Library

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198 THE AMERICAN MUSEUM JOURNAL The Piltdown man as one of the "Missing Links" As stated above, the temporal bone ard its mastoid process, the back of the head and the whole brain-case, as well as the brain cast, are human in character, although of low type, while the lower jaw and dentition are prevailingly simian. And while this regional dis- tribution of human and simian charac- ters was unexpected and in a way un- precedented, it means, as Professor Elliot Smith has noted, that the erect pose of the body, the freeing of the hands from locomotive functions, and the human development of the brain were associated in the Piltdown man with a more conservative or simian structure of the dentition and jaw. Whether or not the Piltdown man could talk is an open question. Dr. James Robinson has pointed out that in modern man the genioglossus muscle, the principal muscle of the tongue, is differentiated into many more or less separate strands, each with its own nerve supply and that this arrangement per- mits the extremely rapid and delicately coordinated movements of the tongue in speaking, whereas in the apes this muscle is much smaller and less differ- entiated. In modern man the muscle is attached to two little tubercles on the inner side of the chin, known as the genial tubercles (Fig. 6, g. /.). In the Piltdown
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Fig. 10. A. Young chimpanzee skull B. Piltdown skull C. Adult male chimpanzee D. The La-Chapelle-aux-Saints skull (Neanderthal race). After Smith Woodward

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