OF DENISON UNIVERSITY. 
85 
PLATE V. 
C. L. Herrick. 
Fig. I. Section somewhat cephalad from Plate IV, Fig. 2. The crossing 
of fibres from the paries of the thalamus to the hemisphere, is shown. • 
Ftg. 2. Transverse section farther caudad, showing adhesion of the hippo- 
campus with the corpus callosum, also the position of the descending fornix 
fibres near the medio-ventral portion. 
Fig. 3. Transverse section of hemisphere at the caudad extremity of the 
hippocampus. 
Fig. 4. The entire brain seen from the dorsal aspect. For results of elec- 
trical stimulation see page 38, 
Fig. 5. The same viewed from the ventral aspect. 
Fig. 6. Another brain dissected and laid open to display the corpora quad- 
rigemina, thalamus, ventricles, etc. 
PLATE VI. 
C. L. Herrick. 
This plate illustrates the distribution and arrangement of the cellular ele- 
ments in the postero-median areas of the cortex. 
Fig. I. (IITc-i2a ) Giant or ganglion cells from a transverse section of the 
right hemisphere near the posterior part of dorsal surface and near the middle 
of transverse diameter. Chiefly centrifugal cells ; a few centripetal. Camera. 
Magnified about 165 diameters. 
Fig.' 2. (VL-i 5^.) Portion of transverse section in front of infundibulum 
at a point about 5 mm. from median line, giant or gaiiglion cells from the area 
governing sphincter of eye-lids. Camera, x 165, 
3 * Cells from the same section and depth, but farther from 
the median line and hence in the sensory area. Camera, x 165. 
Fig. 4. (VI^/-6« ) Portion from transverse section in advance of Fig. i. 
showing the upper part of the cortex in the sensory area. The section appears 
to be a little in advance of exit of oculo-motor roots. Camera, x 165. 
Fig. 5. (VI^-3a.) From a transverse section a little back of the chiasm. 
Extreme lower part of the lateral surface of cortex, near the sulcus and occupy- 
ing same relative position as (VI-i^^^,) multipolar and centripetal cells of middle 
zone of cortex. 
Fig. 6. (IllaCib.) .Section near the chiasm. Camera, x 165. Giant cells 
of motor area, x 250, i-io inch objective and camera. 
Fig. 7. Opossum, at juncture of fibre layer and cortex, near median fissure, 
half way from crucial sulcus to front. Section longitudinal. 
Fig. 8. Radial longitudinal section taken with corpus quadrige- 
minum as a centre passing through a point midway between median fissure and 
