The facts relating to the discovery itself, and the position in which the remains were found, as stated by Dr. Dubois in his paper, together with some additional details given to me personally, convinced me that, in all probability, the various remains attributed to Pithecanthropus pertained to one individual. Under the circumstances, no paleontologist who has had experience in collecting vertebrate fossils would hesitate to place them together.
In figure 1, below, a geological section is given, showing the series of strata exposed in the bank of the river Bengawan, near Trinil, in central Java, where all the remains of Pithecanthropus were found. The exact positions of these various specimens when discovered are also indicated.
1.
Figure 1.—Section of the bone strata at Trinil. (After Dubois.)
A, vegetable soil; B, sand-rock; C, bed of lapilli-rock; D, level in which the four remains were found; E, conglomerate; F, clay-rock; G, marine breccia; H, rainy season level of river; I, dry season level of river.
The above section, taken from Dr. Dubois's Dublin paper, makes clear many points as to the locality where the discoveries were made, which were left doubtful in the original memoir.
