530 
PEOFESSOE MAESHALL ON THE BEAIN OF A BUSHWOMAN ; AND 
examination reveals great differences in every aspect, as is illustrated in the subjoined 
outline figures. 
a 
e 
e' 
a. Upper view of the intracranial cast of the cranium of the Idiot Woman. 
a 1 . Ditto of a young Chimpanzee. b, V . Left sides of the same two casts. 
c, c’. Front views of the same. d, d 1 . Back views of the same. e, e\ Base views of the same. 
N.B. All these figures are reduced to one-third of the proper linear dimensions. 
Viewed from above (a), the general mass is more nearly oval, its greatest transverse 
diameter being opposite its centre, whilst in the Chimpanzee (a 1 ) it is further back. The 
frontal region is not so pointed. The cerebrum does not project beyond the cerebel- 
lum, as in the Ape. Seen laterally (b, b 1 ), when the idiot’s brain is placed in its natural 
position, the base line of the encephalon slants obliquely upwards and forwards, whilst 
the Ape’s is nearly horizontal. The vertex in the idiot is turned backwards and up- 
wards, instead of directly upwards ; the frontal lobe has a smaller beak-like projection, 
and in its general mass is deeper from its orbital margin upwards. The temporal lobe 
is much larger in all directions than in the Ape ; the parietal lobe is less prominent ; 
the occipital lobe is shorter. The cerebellum, in this view, appears very much larger 
than in the Ape, seeming to occupy an area more than twice as great. In front ( c , d), 
the general resemblance between the two casts is the most striking, — the differences 
