CONTENTS 



Northrop, John H. The role of the activity coefficient of the 



hydrogen ion in the hydrolysis of gelatin 715 



DU NotJY, P. Lecompte. Energy and vision 743 



Brody, Samuel. The rate of growth of the domestic fowl 765 



Coulter, Calvin B. The thermolability of complement in relation 



to the hydrogen ion concentration 771 



LiLLiE, Ralph S. A simple case of salt antagonism in starfish eggs. 783 



ScHMiTZ, Henry. Studies in wood decay. II. Enzyme action in 



Polyporus volvatus Peck and Fomes igniarius (L.) Gillet 795 



Palmer, Walter W., Atchley, Dana W., and Loeb, Robert F. 

 Studies in the regulation of osmotic pressure. I. The effect of 

 increasing concentrations of gelatin on the conductivity of 

 sodium chloride solution 801 



Pond, Samuel Ernest. Correlation of the propagation-velocity of 

 the contraction-wave in muscle with the electrical conductivity 

 of the surrounding medium 807 



Loeb, Jacques. Donnan equilibrium and the physical properties of 



proteins. III. Viscosity 827 



Index to Volume III 843 



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