GON TEN TS 
ADSORPTION of Poisons (On) by Constituents of the Animal Body. I. The 
adsorbent power of serum and brainsubstance for Cocain. 831. 
ALCOHOL (The unsaturated) of the essential oil of freshly fermented tea-leaves. 
758. 
ALGEBRAIC CURVES (Null systems determined by linear systems of plane). 156. 
ALGEBRAIC FORMS (On expansions in series of) with different sets -of 
variables of different degree. 268. 
ArLiuMm Cepa (The Influence of Light on the Cell-increase in the Roots of). 457. 
ALLOCINNAMIC ACID (The trimorphism of). 497. 
ALUMINIUM (The Electromotive Behaviour of). I. 876. 
AMPHIBIANS and Reptiles (Rhythmical Skin-growth and Skin-design in). 954. 
ANALYTICAL FUNCTIONS (Series of). 656. 
ANDEL (J. A. VAN DEN), G. L. C. LA BASTIDE and A. SMrTs. 
The Phenomenon after Anodic Polarisation. I. 82. II. 296. 
ANGERER (VON). (On the so-called filtrable virus of influenza described 
by). 172. 
ANIMAL Bopy (On Adsorption of Poisons by Constituents of the). I. 
The adsorbent power of serum and brainsubstance for Cocain. 831. 
ANODIC POLARISATION (The Phenomenon after). J. 82. II. 296. 
ANTIMONY and Bismuth (Researches on the Spectra of Tin, Lead,) in the 
Magnetic Field. 300. 
Astronomy. P. H. van Cirtert: “The Structure of the Sun’s Radiation.” 73. 
— W. be Sitter: “Theory of Jupiter's Satellites. IL. The variations.” 236. 
Arropin (The Action of) on the Intestine depending onits amount of Cholin. 438. 
AVENA SATIVA (Photo-growth reaction and disposition to light in). 57. 
Backer (H. J.) and J. V. Dussky. On the preparation of z-sulphopro- 
pionic acid. 415. 
Bacteriology. L. K. Worrr: “On the so-called filtrable virus of influenza 
described by vON ANGERER.” 172. 
BAKHUYZEN (H. L. VAN DE SANDE). Photo-growth reaction and dis- 
position to light in Avena sativa. 57. 
BARENDRECHT (H. P.). Urease and the radiation-theory of enzyme 
action. III, 29. IV, 126. 
64 
Proceedings Royal Acad. Amsterdam. Vol. XXII, 
