Band. — Nerve-Cell Centxosome. 



PLATE 5. 



All the figures magnified 2000 diameters. 



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



Fig. 28. Telophase from a brain of 34 daj-s' regeneration. One chromatic mass 

 cut away. Gentian violet. 



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

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



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

 other, y is the upper of the two and the outline of the lower is indi- 

 cated by S. Gentian violet. 



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

 Iron-hffiraatoxylin. 



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- 

 haematoxylin. 



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

 Gentian violet. 



