OTHER FIGURES OF THE BRAIN. 493 



(18) Owen : 25, PI. 20 ; Fig. 1-3, dorsal, lateral and mesal aspect of the hrain of the 

 Cheetah Felis juhata, shaded ; Fig. 4-6, the same of the cat, outline. The former are 

 somewhat vague, especially as to the Sylvian fissure ; the latter are clear, and correct 

 excepting the non-extension of the F. postrhinalis in Fig. 5, and the indication upon Fig. 6 

 of an improbable fissure near the caudal end of the hemisphere. 



(19) Owen : A, III ; Fig. 83, dorsal aspect of cat's brain. Unacknowledged, but evi- 

 dently copied from the very poor figure of Bell (A). 



(20) Owen : A, III ; Fig. 86, the mesal aspect of the right hemisphere ; ajiparently 

 original. A good outline diagram, excepting the presence of the line marked (13), pur- 

 porting to represent the F. lambdaidalis, and apparently the same as shown in Fig. 3 and 6. 

 Whether or not such a fissure exists in the Cheetah, or whether, if present in any feline 

 brain, it is the homologue of the " lambdoidal " or " occipito-parietal " fissure, need not be 

 discussed here ; but among the many (over 300) cat's brains examined by us, none have 

 presented any fissure in that region. Probably the line was accidentally introduced or 

 may represent a vascular furrow (§ 1341). 



(21) Owen: A, III; Fig. 91, the lateral aspect; an outline diagram, apparently 

 reduced and slightly changed from the same author's Fig. 5 (25, PI. 20). The superorhi- 

 talis, however, has disappeared, and the diagonalis is made, incorrectly, to join the rhinalis. 



(22) Pansch : 1, Taf. XIV, XV ; Fig. 23-38, dorsal, lateral and mesal aspects of the 

 hemispheres of adult, new-born and foetal cats. These are excellent original diagrams of 

 the fissures. 



(33) Serres : A, PI. XIV ; Fig. 364, 365, the lateral and dorsal aspects of what pur- 

 ports to be the brain of a lion, but, as remarked by Leuret (Leuret et Gratiolet, A, PI. 5, 

 p. 10], is really that of a cat. 



(34) Spurzheim : A, PI. IV ; Fig. 5, dorsal aspect of a somewhat distorted brain. 

 (3,')) Stowell, T. B. : 1 ; Fig. 1, 3, ventral and lateral aspects of the cat's brain, with 



special reference to the ectal origins of the cranial nerves ; the fissures and other parts 

 are shown diagrammatically ; Fig. 3-13, ectal nerve origins and distribution of the vagus. 



(36) Tiedemann, F. : A, Tab. Ill ; Fig. 3-5, dorsal, ventral and mesal aspects of a 

 lion's brain ; original and mainly accurate ; Fig. 6, the brain " Felis nondum adulti, quod 

 cerebro Leonis persimile est." .Unless the author had positive knowledge as to the imma- 

 turity of this brain„ it must be regarded as that of an adult domestic cat. 



(37) Wilder : 11 ; PI. I, Fig. 1, 3, portions of the cerebellum, showing the vermis 

 and the Ldbulus appendicularis ; PI. Ill, Fig. 15, 17, dorsal and lateral aspects of the 

 hemispheres, diagrams of the fissures ; PI. IV, Fig. 18, 19, lateral aspect, young Asiatic 

 and African lions, fissural diagrams. 



(38) Wilder : 8 ; Fig. 1, 3, fissural diagrams of the lateral and mesal aspects. 



(39) Wilder: 14:; PI. 1-3, Fig. 1-5, the dorsal, lateral, ventral, mesal, cephalic and 

 caudal aspects of the entire brain or of the hemispheres ; PI. 3, 4, Fig. 7-30, sections and 

 dissections illustrating the gross anatomy. 



THE CEREBRUM AND ITS FISSURES. 



§ 1335. Form of the Cerebrum. — As compared with that of 

 most dogs, the cat's cerebrum is remarkable for its width. The 

 average width is 84-37 mm. With four well preserved adult brains, 

 taking the width at 100 as the standard, the lengths were respect- 

 ively 93, 97, 100 and 103, while the heights were 75, 67, 71 and 72. 

 In round numbers, then, the lateral and longitudinal dimensions of 



