Note 8 — Article XXI.—A BILATERAL DIVISION OF THE PARIETAL BONE IN A CHIMPANZEE; WITH SPECIAL REFERENCE TO THE OBLIQUE SUTURES IN THE PARIETAL.
Reading edition
Welcker, H., Untersuch. ü. d. Wachsthum u. Bau d. menschl. Schädels, Leipzig, 1862, p. 109.