432 ELIZABETH KIXXEY. 



PLATE II. 



All figures made from sections cut 4 micra in thickness, and drawn with camera 

 lucida, magnification, oc. 12.5 X, obj. 1.8 mm., oil immersion. 



FIG. i. Section of cell from posterior region of tubule fixed by the Champy 

 method and stained with iron haematoxylin, acid fuchsin. Cross section. Cyto- 

 plasmic granules appear to be grouping toward lumen. 



FIG. 2. Section of cell from secreting region of tubule fixed by Regaud method 

 and stained with acid fuchsin, methyl green. Cross section. Mitochondria show 

 definite orientation toward lumen. 



FIG. 3. A section of a nucleus from material fixed by the Champy method and 

 stained with iron haematoxylin, acid fuchsin. The nucleoloid body is surrounded 

 by nuclear bodies that are smaller than those toward the nuclear wall. 



FIG. 4. Section of nucleus from material fixed by the Gatenby method and 

 stained with iron haematoxylin, acid fuchsin. Two nuclear bodies are in the 

 process of passing through the nuclear wall into the cytoplasm. 



FIG. 5. Longitudinal section of cell from posterior region of gland fixed by 

 the Champy method and stained with iron haematoxylin, acid fuchsin. Nucleoloid 

 body in process of constricting pieces from periphery. 



FIG. 6. Longitudinal section of cell showing two nucleoloid bodies present in 

 nucleus. Regaud fixation. 



Symbols: eg. cytoplasmic granules; /. lumen; mf. mitochondrial filaments; 

 ni. chromatin; n2. nuclear bodies; nb. nucleoloid body; s. secretion. 



