yXII CONTENTS. 



SLUITER (c. H.). The transformation of isonitrosoacetophenonsodium into sodium 

 benzoate and hydrogen cyanide. 453. 



— and C. A. Lobry de Brüyn. The BECKMANN-rearrangement ; transformation 

 of acetophenoxirae into acetanilide and its velocity. 773. 



SMITS (a.). The course of the solubility curve in the region of critical temperatures 

 of binary mixtures. 171. 2^^ communication. 484. 



— A contribution to the knowledge of the course of the decrease of the vapour 

 tension for aqueous solutions. 628. 



— and L. K. Wolff. The velocity of transformation of carbon monoxide. II. 66. 

 SODIUM (The electrolytic conductivity of solutions of j in mixtures of ethyl- or methyl- 

 alcohol and Avater. 104. 



SODIUM BENZOATE (The transformation of isonitrosoacetophenonsodium into) and hydrogen 

 cyanide. 453, 



SOLAR PHENOMENA (The periodicity of) and the corresponding periodicity in the 

 variations of meteorological and earth-magnetic elements, explained by the dis- 

 persion of light. 270. 



SOLIDIFICATION (The phenomena of) and transformation in the systems NII4NO3, 

 Ag>'03 and KNO3, AgNOg. 259. 



SOLUBILITY CURVE (The course of the) in the region of critical temperatures of binary 

 mixtures. 171. 2^^ communication. 484. 



SOLUBILITY LINES (Abnormal) in binary mixtures owing to the existence of compounds 

 in the solution. 450. 



SOLUTIONS (Absorption-compounds which may change into chemical compounds or). 368. 



— (Changes of concentration in and crystallisation from) by centrifugal power. 846. 



— (Investigation of a source of errors in measurements of magnetic rotations of the 

 plane of polarisation in absorbing). 760. 



SOLVENT (Do the Ions carry the) w'ith them in electrolysis. 97. 



SOURCE OF ERRORS (Investigation of a) in measurements of magnetic rotations of the 

 plane of polarisation in absorbing solutions. 760. 



STANDARD-THERMOELEMENTS (A battery of j and its use for thermoelectric determinations 

 of temperature. 642. 



STIMULUS and eflect (A new law concerning the relation between). (6tli communi- 

 cation). 73. 



STOK (J. p. VAN D E r). Extract from the Eeport made by the committee for 

 awarding the Buys-Ballot medal. 78. 



— presents a paper of Dr. W. van Bemmelen : "The daily held of magnetic distur- 

 bance." 313. 



STOMACH (On the epithelium of the surface of the). 30. 



s T R A H L (u A N s). The proccss of involution of the mucous membrane of the uterus 



of Tarsius spectrum after parturition. 302. 

 STRING-GALVANOMETER (The) and the human electrocardiogram. 107. 



— (On some applications of the). 707. 

 SUBLIMATION LINES (The) of binary mixtures. 408. 

 SUBSTITLTION (On the) of the core of Benzene. 735. 



