700 



THE JOURNAL OF GENERAL PHYSIOLOGY 



Plant: 



Cells, effect of anions on the 

 permeability of (Raber) 



535 

 Potato : 



Juice, saccharogenic actions of 

 (McGuiRE and Falk) 



215 

 Pressure : 



Osmotic (Loeb) 87 



Production : 



Carbon dioxide, during lumin- 

 escence of Cypridina luci- 

 ferin (Harvey) 133 



Heat, during luminescence of 

 Cypridina luciferin (Har- 

 vey) 137 

 Protein : 



Isoelectric points of, in certain 

 vegetable juices (Cohn, 

 Gross, and Johnson) 



145 

 Rate of digestion of, by pep- 

 sin, effect of concentration of 

 enzyme on (Northrop) 



471 

 — — hydrolysis, by pepsin, 

 influence of substrate con- 

 centration (Northrop) 



595 

 Protoplasm : 



Changes in consistency, rela- 

 tion to cell division (Cham- 

 bers) 49 



673 



Radius: 



Ionic (Loeb) 

 Rate: 



Growth, nature of (Reed) 



545 

 iS-ray: 



Different velocities, relative 

 physiological effects of (Red- 

 field and Bright) 31 

 Relative physiological effect of, 

 upon the egg of Nereis (Red- 

 field and Bright) 25 



7-ray: 



Relative physiological effect of, 

 upon the egg of Nereis (Red- 

 field and Bright) 25 

 Reduction : 



Cypridina oxyluciferin, action of 

 acid in (Harvey) 



207 



, — of light in (Harvey) 



207 

 Regeneration : 



(Uhlenhuth) 325 



Nature of directive influence of 



gravity on arrangement- of 



organs in (Loeb) 373 



Quantitative laws (Loeb) 



297, 651 

 Removal : 



Otolith organs, effect of (Max- 

 well) 123 

 Semicircular canals, effect of 

 (Maxwell) 123 

 Respiration : 



(Brooks) 5, 331 



(Gustafson) 17, 617 



(Osterhout) 1 



Aspergillus niger, effects of an- 

 tagonistic salts on (Gustaf- 

 son) 17 

 Bacillus subtilis, antagonistic 

 effect of magnesium in rela- 

 tion to (Brooks) 331 



, relation to antagonism 



(Brooks) 5 

 , toxic effect of magne- 

 sium in relation to (Brooks) 



331 

 Penicillium chrysogenum, effect 

 of hydrogen ion concen- 

 tration (Gustafson) 



617 

 Reversal : 



Sign of charge of collodion 

 membranes by trivalent ca- 

 tions (Loeb) 659 

 of membranes by hy- 

 drogen ions (Loeb) 



577 



