CEREBRAL CONVOLUTIONS " SALLY." 81 



List of the more Important Works dealing with Orang's 



Brain. 



1. GuATiOLET. — Loc. cit. supra. 



2. RoLLESTON, — "On the Affinities of the Brain of the Orang-outang," 



• Natural Hist. Review,' 1861. 



3. BiscHOFF. — " Ueber das Gehirns eines Orang-outang," ' Stzb. Math. 



Phys. Class., 17 June, 1876, d. k. Bayer. Akad.,' i. 



4. Cunningham. — Loc. cit. supra. 



EXPLANATION OF PLATES 7—11, 



Illustrating Dr. W. Blaxland Benham's paper, '' A Description 

 of the Cerebral Convolutions of the Chimpanzee known 

 as ' Sally ;' with Notes on the Convolutions of other 

 Chimpanzees and of Two Orangs." 



The following abbreviations have the same significance throughout the figures. 



■ a. Gyrus iutercuneatus (except fig. 19). aff. "Afifenspalte" or Simian fis- 

 sure, areus. Areas parieto-occipitalis, or " seconde pli de passage" of Gratiolet, 

 or first annectaut gyrus, calc. Calcarine fissure, c. c. Corpus callosum. c. m. 

 Calloso-marginal fissure, d. Sulcus diagonalis. e. o. Sulcus fronto-orbitalis. 

 y. Sulcus frontalis primus. _p. Sulcus frontalis secundus. /. m. Sulcus fron- 

 talis medius. fr. op. Frontal operculum, or pars basilaris. h. Ramus horizon- 

 talis of the prsecentral system. /. P. Intra-parietal fissure. /. B. Insula of 

 Reil. i. t. Inferior transverse fissure of Rolando, k. Keel of the orbital 

 lobule, lat. p. o. Lateral portion of the parieto-occipital fissure, m. p. o. or 

 mes. p. 0. Mesial portion of the parieto-occipital fissure, n. Preearcal branch 

 of the intra-parietal fissure. 0. i. Superior occipital convolution. 0. ii. 

 Second occipital convolution. 0. iii. Third occipital convolution, op., operc. 

 Occipital operculum, orb. op. Orbital operculum, or pars orbitalis. p^. Sulcus 

 postcentralis inferior, p^. Sulcus postcentralis superior, p^. Ramus horizon- 

 talis of the post-central system, p'^. Ramus occipitalis of the post-central 

 system, p. c. i. Sulcus prsecentralis inferior, p. c. s. Sulcus prsecentralis 

 superior. P. 0. Parieto-occipital fissure, p. s. Secondary fissure in the 

 superior parietal lobule. R. or ;•. Fissure of Rolando, or sulcus centralis. 



VOL. 37, PART 1. — NEW SEE. F 



