PHTSIOLOGT 



55 



Permeability, 2, 23 



to ions, 36-46, 52 

 Pfeffer, 5-8, 11, 50 

 Phenol, 45 



Plasma membrane, 23 

 Plasmolysis, 8, 15, 40-42 

 Plastids, 3, 23, 50 

 Potassium, 29, 32-35, 51 



Quincke, 11 



Raffinose, 9, 10 

 Recovery, 18, 21, 41 

 Relationship, 33 

 Rockefeller Institute, 28 



Salts, II 



Sap, 13, 24, 25, 28, 31, 33- 



38 

 Sea water, 32 

 Secretion, 2 



Selective permeability, 2 

 Semipermeable, 4 

 Smith, 40 



Sodium, 29, 32-35 



Sodium chloride, 19-21, 42 



Stamen, 5 



Stimulation, 22 



Sucrose, 45 



Sugar solution, 4, 6, 9, 45 



Sulphate, 29, 32 



Temperature, 23 

 Toxic substances, 31 

 Traube, 5 



Urea, 45 



Vacuole, 3 



Valonia, 27-29, 31-33, 35> 



41, 45) 48, 51 

 van't Hoff, 6, 7, 10 

 Vitality, 18 

 Vries, de, 7-10 



Weak acids, 40, 47 

 Woods Hole, 33 



