298 LILY C. SHUDDEMAGEN. 



EXPLANATION OF PLATES. 



All the figures are from enlarged freehand sketches. The figures on Plates I. and 

 II. were drawn twice natural size, and then reduced about one third in the reproduc- 

 tion. Plate III. was drawn natural size, and then reduced about one half in the 

 reproduction. 



PLATE XXIV. 



FIG. I. Ventral view of the brain. 

 FIG. 2. Lateral view. 

 FIG. 3. Median longitudinal section. 

 FIG. 4. Dorsal view. 



FIG. 5. Ventral view of a late fcetal brain ; length ot the foetus was about 15 cm. 

 FIG. 6. Dorsal view of the same late fcetal brain as Fig. 5. 



