[75] _Beiträge zur Kenntniss des Gorilla und Chimpanse_, p. 32, plate ii. fig. 3. [76] _Bulletin de la Société d’Anthropologie de Paris_ (1869), pp. 83, 113. [77] As, for example, in _Hylobates syndactylus_. Comp. Giobel, _Odontographia_, p. 2: Leipzig, 1855. [78] _Ortleetkundige Beschryving van een volvassen Orang Oetan. Verhandelingen over de natuurlijke geschiedenis der Neederlandsche Bezittingen_: Leiden, 1840. _Bulletin de la Société d’Anthropologie de Paris_, iv. pp. 368–371: 1869. [79] Comp. Aeby, _Der Bronchialbaum der Säugethiere und des Menschen_, p. 7, table v. fig. 11: Leipzig, 1880. [80] _The Brain as an Organ of Mind._ International Scientific Series. [81] Pansch writes of a gorilla’s brain: “The cerebellum ought, in a horizontal position, to be somewhat overlapped by the cerebrum.” I do not understand what he means by the expression _ought_. [82] _Natural History Review_, p. 201: 1861. [83] _Sitzung der Mathematisch-physikalischen Klasse der königl. bairischen Akademie der Wissenschaften_, p. 100: Feb. 4, 1871. [84] Gratiolet, _Mém. sur les plis cérébraux de l’homme et des primates_. [85] _Correspondenzblatt der deutschen Anthropologischen Gesellschaft_, p. 133: 1878. [86] _Verhandlungen der berliner Anthropologischen Gesellschaft_, 1877. [87] Ibid., p. 25: 1878. [88] _Verhandlungen der berliner Anthropologischen Gesellschaft_, p. 28: 1878. [89] _Archiv. für Anthropologie_, p. 129: 1867. [90] _Verhandlungen der berliner Anthropologischen Gesellschaft_, p. 283: 1877. [91] _Correspondenzblatt der deutschen Anthropologischen Gesellschaft_, p. 134: 1877. H. Gerhartz, _Ueber die Ursachen der Microcephalie_. Inaugural dissertation. Bonn, 1874. [92] _Anatomische Untersuchung eines Microcephalen Knaben._ Reprint of a paper written for the celebration of the three hundredth year of the University of Wurzburg, p. 27. [93] _Verhandlungen der berliner Anthropologischen Gesellschaft_, p. 248: 1877. [94] _Das peripherische Nerversystem der Wirbelthiere_, p. 219: Leipzig, 1878. [95] _Bulletin de la Société Zoologique de France_, p. 1: 1877. [96] _Die Vollständigste Naturgeschichte der Affen_, p. 191: Leipzig and Dresden. [97] See Chenu, _Encyclopédie d’Historie Naturelle, Quadrumanes_, p. 34. [98] Catalogue of Monkeys, Lemurs, and Fruit-eating Bats in the British Museum. Appendix, p. 127: London, 1870. [99] For example, the ears are represented as somewhat too small. Although the growth of hair on the crown of the head makes them look larger, the want of proportion must be admitted. It might easily have been altered, but I preferred to reproduce the original sketch as it stood. [100] _Die Säugethiere in Wort und Bild._, by C. Vogt and Specht, p. 11: Munich, 1882. [101] _Mafoca Betreffendes._ Reprinted from the reports of the _Gesellschaft für Natur und Heilkunde zu Dresden_, Sitzung, xxvii. p. 9: 1876. [102] _Thierleben_, ii. 80, 81. _Illustrirte Naturgeschichte des Thierreichs_, i. 11: Leipzig, 1880.