572 MONTGOMER Y. 



EXPLANATION OF PLATE XXV. 



All the figures refer to the large subcuticular gland cells of Piscicola rapax 

 Figs. iy8-ig6 show stages of the prophase, and Fig. /6j the commencement 

 of the metaphase of the tiucleus. 



Fig. 178. Outline of an immature cell, only a portion of its duct drawn (aq. 

 sol. sublimate). 



Figs. 179-18 i. Immature cells (aq. sol. sublimate; Mayer's acid carmine. 20 

 min. ; nigrosine, 25 min.). 



Fig. 182. Immature nucleus (alcohol, sol. sublimate). 



Fig. 183. Idem (alcohol, sol. sublimate ; Ehrlich-Biondi stain, 3 hrs.). 



Figs. 184-189. Nuclei (alcohol, sol. sublimate). 



Figs. 190-194. Stages of the ramification of the nucleus (Flemming's fluid). 



Figs. 195 and 196. Nuclei at the end of the prophase (alcohol, sol. sublimate). 



Fig. 197. Nucleus at the commencement of the metaphase, discharging its 

 nucleoli (Flemming's fluid). 



