Page:The American Journal of Science, series 4, volume 1.djvu/519

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from the Tertiary of Java.
481

The tooth, the first specimen found, is represented in figure 4, below. It is the last upper molar of the right side, and is in good preservation. It indicates a fully adult, but not very old, animal. The crown is subtriangular in form, with the corners rounded, and the narrowest portion behind. The antero- posterior diameter of the crown is 11⋅3mm, and the transverse diameter 15⋅3mm. The grinding surface of the crown is concave, and less rugose than in existing anthropoid apes. The diverging roots are a simian feature.

4.

The American journal of science, series 4, volume 1, 0519a.png

Figure 4.—Third right upper molar of Pithecanthropus erectus. Two-thirds natural size. (After Dubois.)
a, back view; b, top view.

6.

The American journal of science, series 4, volume 1, 0519b.png

Figure 6.—Restoration of the skull of Pithecanthropus erectus. Two-fifths natural size. (Reduced from a figure by Dubois.)
C, sutura coronalis; L, sutura lamboidea; O, foramen occipitale.

The femur, which is from the left side, is in fair preservation, although it was somewhat injured in removing it from the surrounding rock. It belonged to a fully adult individual. In form and dimensions, it resembles so strongly a human femur that only a careful comparison would distinguish one