CIOPN TEEN PES AXV 
STOK (J. P. VAN DER) presents a paper of Mr. P. H. GarrÉ: “On the relation 
between fluctuations in the strength of the trade winds of the North Atlantic 
Ocean in summer and departures from the normal of the wintertemperature 
in Europe”. 1435. 
— presents a paper of Dr. E. van EvERDINGEN Jr.: “The propagation of sound 
in the atmosphere”. 933. 
SUBSTANCES ([sothermals of diatomic) and their binary mixtures XV. 409. XVIL. 
458. XVIII. 465. 
SUNLIGHT (Action of) on the cinnamic acids. 181. 751. 
SUPERSATURATION and release of supersaturation. 369. 
SURFACE-ENERGY (Investigations on the temperature-coefficients of the free molecular) of 
liquids at temperatures from —80° to 1650° C. IX. 75. X 269. XL. 285. XIL. 
297. XIII. 595. XIV. 617. 
SUSCEPTIBILITY (The magnetic) and the number of magnetons of nickel in solutions 
of nickelsalts. 246. 
SYMMETRY (On the) of the Röntgen-patterns of trigonal and hexagonal crystals, and 
on normal and abnormal diffraction-images of birefringent crystals in general. 542. 
— (On the) of the Röntgen-patterns of Rhombic erystals. 559. 
— of the Röntgen-patterns of monoclinic crystals. 1201. 
— of the Röntgen-patterns of tetragonal crystals. 1350. 
SYSTEM argon-nitrogen (Investigation of the equilibrium liquid-vapour of the). 872. 
— Cn-S-O (Equilibria in the); the roasting reaction process with copper. 150. 
— phosphorus (On tension lines of the). IV. 106. 
TAMMES (TINE). On the mutual effect of genotypic factors. 1056. 
TANGENTIAL CURVES of a pencil of rational cubies. 1277. 
TEMPERATURE-COEFFICIENT of conductivity in alcoholic solutions, and extensicn of 
Kontrauscu’s hypothesis to alcoholic solutions. 373. 
TEMPERATURE-COEFFICIENTS (Investigations on the) of the free molecular surface-energy 
of liquids at temperatures from —80° to 1650° C. IX. 75. X. 269. XL. 285. 
XII. 297. XIIL. 595. XIV. 617. 
TEMPERATURES (The specific heat at low). IL. 484. IL, 1247. 
— (On the measurement of very low). XXV. 493. XXVI. 829. 
— (An interpolation-formula for resistance-thermometry at very low). 914. 
TENSION LINES (On) of the system phosphorus. IV. 106. 
TERNARY SYSTEMS (On critical endpoints in). LIL. 793. 
TETRANITROPHENYLMETHYLNITRAMINE (Action of methylethylketone on 2.3.4.6). 98. 
THEORY (The) of the Brownian movement. 1322, 
— of allotropy (The P,X-figures of unary systems, according to the). 1334. 
TIMOR (Some young-pliocene Ostracods of). 1205. 
— and Rotti (On the occurrence of nodules of manganese in mesozoic deep-sea 
deposits from Borneo), their significance and mode of formation. 415. 
TITANE TETRACHLORIDE (The magnetic rotation of the plane of polarisation in). 925. 
TITANIUM TETRACHLORIDE (The magnetic rotation of the polarisation plane in). I. 101. 
