CONTENTS 



Moore, A. R. The selective action of nicotine on the central nerv- 

 ous sj^stem of the squid, Loligo pealii 505 



Swingle, W. W. On the experimental production of edema by 

 nephrectomy 509 



OsTERHOUT, W. J. V. Antagonism between alkaloids and salts in 



relation to permeability 515 



DU NotJY, P. Lecomte. a new apparatus for measuring surface 

 tension 521 



Uhlenhuth, Eduard. Relation between metamorphosis and other 

 developmental phenomena in amphibians 525 



Hecht, Selig. Sensory equihbrium and dark adaptation in Mya 



arenaria 545 



LoEB, Jacques. Amphoteric colloids. V. The influence of the 



valency of anions upon the physical properties of gelatin 559 



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