Rand. — Nerve-Cell Centroaome. 



PLATE 5. 



All the figures magnified 2000 diameters. 



Fig. 27. Telopliase from a brain of 34 days' regeneration. Gentian violet. 



Fig. 28. Telopliase from a brain of 34 days' regeneration. One chromatic mass 



cut away. Gentian violet. 

 Fig. 29. Telophase from a brain of 34 days' regeneration. Reconstructed from 



two sections. Above it, a young cell. Iron-haematoxylin. 

 Fig. 30. Telophase from the anterior end of a cord after 34 days' regeneration. 



Gentian violet. 

 Fig. 31. Young cell (with several of the neighboring nuclei) from the posterior 



ventral region of a brain of 34 days' regeneration. Iron-haematoxylin. 

 Figs. 32a, 326. A pair of young sister cells from a brain of 34 days' regeneration. 



The cells are in successive sections. Iron-haematoxylin. 

 Fig. 33. Two pairs of young sister cells from a brain of 34 days' regeneration, a 



and are one pair. The two cells of the other pair lie one over the 



other. 7 is the upper of the two and the outline of the lower is indi- 

 cated by 5. Gentian violet. 

 Figs. 34, 35. Young cells from the anterior end of a cord of 34 days' regeneration. 



Iron-haematoxylin. 

 Fig. 36. A group of cells from the posterior ventral region of a brain of 34 days' 



regeneration. At the centre of the group is a young cell. Iron- 



hfematoxylin. 

 Fig. 37. Young cell from the dorsal region of a brain of 34 days' regeneration. 



Gentian violet. 



