CONTEKTS Xm 



LIQUID PROPS (On the shape of larije, {iiul s^as-bubhles and the use made of them for 



the measurement of capillary constants. 836, 

 LIQUIDS (On the Theory of the Friction of). 743. II. 1283. 



LOBaY D K BBUYN (c. A.). V. BbUTN (C. A. LOBRY I)R). 



LOON (c H R. van) and J. BÖE9EKEN. Determination of the Configuration of cis- 



trans-isoraeric substances. 80. 

 LORENTz (h. a.) presents a paper of Dr. J. J. van Laar: "On the Course of the 



Values of a and 6 for Hydrogen at Diöerent Temperatures and Volumes". 111.2. 



IV. If). 



— presents a paper of Dr. G. Nordstrom : "Calculation of some special cases, in 

 Einstein's theory of gravitation". 68. 



— presents a paper of Prof. L. Ö. Ornstein : "The variability with time of the 

 distributions of Emulsion-particles". 92. 



— presents a paper of Prof. L. S. Ornstein : "On the Brownian Motion". 96. 



— presents a paper of Prof. L. S. Ornstein and Dr. F. Zernike : "The Theory 

 of the Hrovvnian Motion and Statistical Mechanics". 109. 



— presents a paper of Dr. H. B. A. Bockwinkel: 'Observations on the develop- 

 ment of a function in a series of factorials". 428. II. 582. 



— presents a paper of Dr. Th. de Donder : "Le tenseur gravifique". 437. 



— ])resents a paper of Dr. A. D. Fokker : "On the equivalent of parallel trans- 

 lation in non-Euclidean space and on Riemann's measure of curvature". 50.^. 



— presents a paper of Prof. J. A. Schouten : "On the arising of a precession- 

 motion owing to the non-euclidian linear element of the space in the vicinity 

 of the sun". 583. . 



— presents a paper of Dr. 0. Postma : '"On friction in connexion with Brownian 

 movement". 616. 



— presents a paper of Dr. J. J. van Laar : "On the Heat of Dissociation of Di- 

 atomic Gases in Connection with the Increased Valency- Attractions l^A of 

 the Free Atoms". 644. 



— presents a paper of J. J. Haak and Prof. H. Sissingh : "Experimental Inquiry 

 into the Nature of the Surface-Layers in the Reflection by Mercury, and into 

 the Diiierence in the Optical Behaviour of Liquid and Solid Mercury". 678. 



— presents a paper of Prof. L. S. Ornstein and Dr. F, Zernike : "Magnetic properties 

 of cubic lattices". 911. 



— presents a paper of Prof. L. S. Ornstein and Dr. H. C. Burger : 'On the theory 

 of the Brownian Motion". 922. 



— presents a paper of G. Holst and E. Oosterhuis : ''The audion as an 

 amplifier". 932. 



— presents a paper of Dr. G. Krutkow: "Contribution to the theory of adiabatic 

 invariants". 1112. 



— presents a paper of Prof. J. A. Schouten and I). J. Struik : "On the connexion 

 between geometry and mechanics in static problems". 1176. 



— presents a paper of Dr. J. J. van Laar: "On the Equation of State for Arbi- 

 trary Temperatures and V^oluraes. Analogy with Planck's Formula". 1 184. 



