PLATE 2 



EXPLANATION OF FIGURES 

 KIDNEY. POTASSIUM CHROMATE 



6 Normal excretory tubule. 



7 Glomerulus and collecting tubule after poisoning. Note the shrunken 

 nuclei and vacuoles. 



8 Excretory tubule. Note the granular degeneration and shrunken nuclei. 



9 Extreme case of granular degeneration. The supporting connective tissue 

 has broken and allowed the debris to spread. Desquamated cells become round. 

 Hyaline and hydropic degeneration not shown. 



146 



