CONTENTS Vll 



Brooks, Matilda Moldenhauer. The penetration of cations 



into living cells 347 



LoEB, Jacques. The origin of the electrical charges of colloidal 



particles and of living tissues 351 



No. 4, March 20, 1922. 



Fenn, Wallace O. The theoretical response of living cells to 



contact with solid bodies 373 



De Kruif, Paul H. Change of acid agglutination optimum as 



index of bacterial mutation 387 



De Kruif, Paul H. The mechanism of granular growth of 



rabbit septicemia bacillus Type G 395 



Coulter, Calvin B. The agglutination of red blood cells in the 



presence of blood sera 403 



Cameron, A. T,, and Hollenberg, M. S. The relative toxicity 



of the halides and certain other anions 411 



SuGiURA, Kanematsu, and Failla, Gioacchino. Some effects of 



radium radiations on white mice 423 



McGuire, Grace, and Falk, K. George. Banana gel 437 



Loeb, Jacques. Quantitative laws in regeneration. III. The 



quantitative basis of polarity in regeneration 447 



Loeb, Jacques. Electrical charges of colloidal particles and 



anomalous osmosis 463 



No. 5, May 20, 1922. 



Northrop, John H. Does the kinetics of trypsin digestion 

 depend on the formation of a compound between enzyme and 

 substrate? 487 



HussEY, Raymond G. The influence of x-rays on the properties 



of blood 511 



Amberson, William R. Kinetics of the bioluminescent reaction 



in Cypridina. 1 517 



Amberson, William R. Kinetics of the bioluminescent reaction 

 in Cypridina. II 535 



Carlson, A. J. A note on the action of curare, atropine, and 



nicotine on the invertebrate heart 559 



