PLATE G 



EXPLANATION OF FIGURES 

 KIDNEY, SPLEEN, AND GILL. URANIUM NITRATE 



{See figure 18 for normal Jiidney) 



22 Mild granular degeneration. 



23 Late granular degeneration. 



24 Granular and hydropic degeneration, but not typical of the latter type. 



25 Beginning of hyaline degeneration. Late stage not shown. 



26 Nuclei found in the blood-vessels and connective tissue of kidney, coming 

 probably from endothelium of spleen and gills. 



27 Nuclei from the endothelium of the spleen and gill sinuses and probably 

 representing abnormal amitosis in production of phagocytes. The cell 'x' repre- 

 sents a mitotic figure seen in the spleen. 



154 



