Nucleolus 



Chromocentre 



(b) 



(c) 



Nucleic acid 



Glycogen 



Phosphatase 



Bile canaliculi 



(f) 



Granules 



Glycogen 



Gel 



Fig. I. Cytochemistry of hepatic cells, a. Hydrogen ions. b. Diffusible 

 SH. c. Pentose nucleic acid (red) and deoxypentose nucleic acid (green), 

 d. Glycogen, e. Alkaline phosphatase; in addition to the main sites 

 shown, there are low concentrations of alkaline phosphatase in the cyto- 

 plasm and in the chromocentres. f. Fat (red) and fatty aldehyde 

 (green), g. Centrifuged cell; fat at upper pole. h. Dividing cell; pentose 

 nucleic acid (green) and deoxypentose nucleic acid (red). 



