Lewis. — Nervous Sjst. Polycbseta. 



PLATE 4. 



Figs. 22, 23. Successive longitudinal sections of nerve cord, shoAving relation of 



giant ganglion cell to Leydig's fibre. Vom Rath preparation. 



X 750. 



Fig. 24. Section of giant cell, showing centrosome composed of several corpuscles. 



Fig. 25. Section of giant cell, showing eccentric position of the nucleus and the 



band of denser protoplasm surrounding tlie sphere. 

 Fig. 26. Section of giant cell, showing centrosome with radiations and pole of the 

 cell. The protoplasm is slightly shrunken away from the sheath of the 

 cell on one side. Iron hematoxylin preparation. 



