SUBJECTS 



695 



Concentration — continued: 



Electrolytes, influence on some 

 physical properties of crys- 

 talloids (Loeb) 273 

 Enzyme, effect on rate of diges- 

 tion of proteins by pepsin 

 solution (Northrop) 



471 

 Substrate, influence on rate of 

 hydrolysis of protein by pep- 

 sin (Northrop) vS95 

 Conduct : 



Animal, analysis of (Crozier 

 and Arey) 107 



Consistency : 



Protoplasmic, changes in, rela- 

 tion to cell division (Cham- 

 bers) 49 

 Crystalloids : 



Influence of concentration of 

 electrolytes on some physical 

 properties of (Loeb) 



273 

 Cypridina: 



Luciferin, carbon dioxide pro- 

 duction during luminescence 

 of (Harvey) 133 



— , heat production during 

 luminescence of (Harvey) 



137 

 Oxyluciferin, action of acid in 

 reduction of (Harvey) 



207 



— , light in reduction of 



(Harvey) 207 



D 



Decrease : 



Facet number, change in bar 

 gene of Drosophila involving 

 (Zeleny) 69 



Device : 



Regulating temperature above 

 room temperature (North- 

 rop) 309 



below room temperature 



(Northrop) 309 



Diffusion : 



Rate, of water, through col- 

 lodion membranes (Loeb) 



173 



— , — — , through collodion 



membranes, cause of influence 



of ions (Loeb) 387, 563 



Digestion : 



Rate, of proteins by pepsin, 

 effect of concentration of 

 enzyme on (Northrop) 



471 

 Division : 



Cell, changes in protoplasmic 

 consistency, relation to 

 (Chambers) 49 



Dominance : 



Change in bar gene of Droso- 

 phila involving increase in 

 (Zeleny) 69 



Drosophila ; 



Bar-eyed mutant of, effect of 

 temperature upon facet 

 number (Krafka) 



409, 433, 445 

 Change in bar gene of, involv- 

 ing decrease in facet number 

 (Zeleny) 69 

 gene of, involving in- 

 crease in dominance (Ze- 

 leny) 69 

 Dynamics : 



Functions, dynamic, of laby- 

 ririth, mechanism of (Max- 

 well) 349 

 Histogenesis (Carey) 357 



E 

 Echinodontium : 



tinctorium Ellis and Everhart, 

 enzyme action (Schmitz) 



613 

 Efficiency: 



Ionic (Loeb) 673 



Egg; 



Nereis, relative physiological 

 effects of |S-rays upon (Red- 

 EiELD and Bright) 25 



