which it resembles the jaw of an ape.27 Yet the teeth are typically human in arrangement and character, relatively small when contrasted with the massive support

FIGURE 22. Sand-pit at Maure, near Heidelberg, where the Pre-
historic Jaw was found.

ing bone, but actually large when contrasted with the modern man. The features are so distinctive that the discoverer, Dr. Schoetensack, considers the specimen as representing a distinct species of man. Lull finds in this important specimen an admirable illustration of the 27 See figure 23.

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law of Haeckel wherein the life cycle of the individual is shown to recapitulate in vastly briefer form the evolutionary history of the race. This is borne out by the fact that the teeth of the Heidelberg man are in their stage of development comparable to those of a youth of

FIGURE 23. Comparison of Jaw of Modern Man with Jaw of Heidelberg Man and Chimpanzee.

fourteen years or less, while their degree of wear indicates a fully attained manhood. Thus the Heidelberg man, a full adult for his time and generation, typifies none the less the youth of humanity.28

During the year 1912 a series of fragments of a human skull and a jaw bone were found associated with eolithic implements and the bones of extinct mammals in pleistocene deposits on a plateau 80 feet above the river bed at Piltdown, Fletching, Sussex, England. This discovery was made by Mr. Charles Dawson, and Dr. A. S. Woodward. The remains were of great importance because while the cranium was typically human its cubical capacity was relatively small, about four-fifths that of the average European skull and twice that of the highest ape. The jaw was similar to the Heidelberg jaw although somewhat less massive, but the chin was even more negative than the Heidelberg chin. The discoverers regard this relic as a specimen of a distinct genus of the human

28 Lull, op. cit., p. 380.

species and it has been called the Eoanthropus dawsoni. This extinct man lived in Europe hundreds of thousands of years ago.28a

Other skulls and bone parts of prehistoric man have been found and are preserved in museums, but the specimens described are sufficient to illustrate the type of evidence they constitute. The available materials for the study of prehistoric man besides his own remains are his 28-a See Science, Jan. 17, 1913, and Pop. Sci. Mo., Feb. 1913, vol, lxxxii, No, 2, pp. 206-207.

From "L'Anthropologie."

FIGURE 25. The Grotto Chapelle-aux Saints, where Remains of Prehistoric Men were found.

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