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BULLETIN OF THE LABORATORIES 
5-7. Similar sections at successively higher levels as far as to the 
corpus callosum. 
Fzg-. 8. Transverse section through the corpus callosum and anterior Com- 
missure. 
9. Section of part of fornix body. 
10. (IIIr-13.) Horizontal longitudinal section through the middle of 
the right hemisphere, passing through the corpus callosum and the hippocampal 
involution. 
PLATE III. 
C. L. Herrick. 
Details from sections of preeeeding plates. 
Fz£-. I. Portion of corpus striatum, x 25. 
2. Cortex near olfactory tract in transverse section at cephalic margin 
of corpus callosum. 
3. Portion of cortex near middle of median fissure in transverse sec- 
tion, half way from front to corpus callosum, x 165. The arrow indicates the 
direction of the surface. Two sorts of cells, centrifugal preponderating. 
Fig, Typical motor area. {yia-2^a) Giant or ganglion celllayer near 
median fissure. (Compare Fig. 7.) x 165. 
Fig^ 5. Similar motor area in VIa-7, in front of the corpus callosum, in 
about the middle of the superior surface. Only the upper layers, x 165. 
Fig. 6. Deep layer of cortex of median fissure near the lower third of ver* 
tical diameter, x 165. 
Fig. 7. Section entirely through the cortex of VL-24, at same point as 
Fig. 4. X 86. 
PLATE IV. 
C. L. Herrick. 
Fig. I. Transverse section through the hemisphere near the middle of the 
corpus callossum, showing the position of the fornix body and descending tract 
of the fornix. Also the relations of the corpus striatum and optic tracts. 
Fig. 2. Transverse section through the thalamus, to show the relation of 
the hippocampus, its commissure and the rearrangement of the white matter in 
the thalamus. A small fragment of the corpus striatum remains. 
Fig. 3 Portion of a, Fig. 2, enlarged. Structure of the hippocampus. 
Fig. 4. Portion of cortex along median sulcus, («/, Fig. 2.) 
Fig. 5. Small area from thalamus at c, Fig. 2. 
Fig. 6. Deeper part of lateral cortex, (Fig. 2 b.) The cells apparently flask- 
shaped, with the acute apical process median. Is this due to oblique section of 
pyramidal cells ? 
