Explanation of Plates. 157 



Fig. 5<z. — Enlarged view of the vagus and glossopharyngeal 

 ganglia, with the nerves connected. The point of entrance 

 of the hypoglossal is indicated at XII., but it is really hidden 

 behind the ganglion. 



Fig. 6. — Cells of the olfactory type, from hippocampal region. 



Figs. 7, 8. — Cells from the axial lobe, from a section slightly dorsal 

 to Fig. 4, Plate XL, in the middle of the posterior protuber- 

 ance. Cells rapidly multiplying by division. 



Fig. 9. — Portion of cortex showing relation between the motor (V) 

 and sensory {a) cells. The arrow indicates the direction of 

 the surface. 



Fig. 10. — Cells from the extreme antero-median region, as seen 

 in section figured Plate XL, Fig. 4. Combination of motor 

 and sensory cells The periphery is here above, the ventricle 

 below. Three flask-cells are seen in the lower left corner. 



Fig. ii — Portion of section figured on Plate X., Fig. 2, at a; i. e., 

 from the occipital region. 



Fig. 12. — A typical sensor/ area of the cortex from slide 10. 



Plate VI II. 



A scries of nineteen transverse sections through the cerebrum and other 

 parts as far backward as to the cerebellum. 



c. c, corpus callosum ; a. c, anterior commissure; ol. /,, 

 olfactory tracts (?) to the fornix region; ol. t'., lateral olfactory 

 tracts; p., longitudinal fibres of crura; /. th., taenia thalami ; 0. tr., 

 optic tracts; /., tract passing from inferior lateral margin of the 

 ventricle to the taenia (?); tr. /., tracts crossing to the peduncle 

 transversely from lateral region of hemisphere; c. gn., corpus 

 geniculatum; m. c, middle commissure; s. c, superior commis- 

 sure; col., colliculi of optic lobes; tec. 0., tectum opticum; x., 

 fibrae ansulatae (??). 



Plate IX. 



Chiefly longitudinal vertical sections through the brain. 



Fig. 1. — Section from the extreme side of the medulla. 



Fig. 2. — Section in a nearly corresponding plane through the optic 

 lobes and hemispheres. 



