Fig. 2. Drawing of part of the first part of an oral radial nerve. ×9.

Fig. 3. Drawing of the lower end of an oral radial nerve. ×9.

Fig. 4. Drawing of the upper part of an aboral radial nerve. The eye spot region is up in the figure. ×9.

Fig. 5. Camera lucida drawing of a part of an aboral nerve showing position of cell areas. ×70.

Fig. 6. Drawing of a section of an oral radial nerve. ×300.

Fig. 7. Drawing of a section of circumoral nerve. ×300.

Fig. 8. Drawing of a section of aboral nerve. ×300.

Fig. 9. Nerve cells from central regions of a radial nerve. The arrangement is as shown in the drawing, cells of various levels shown as one layer. Some of the processes possibly relate nearby cells, but most fibers run into the general fibrous mass. All fibers or fibrils are small. There is some indication of tigroid substance in some of the cells. ×450.

Fig. 10. Nerve cells from near a lateral branch from the radial band. ×450.