KONINKLLJKK AKADKMIE VAN WETENSCHAPPEN 

 TE AMSTERDAM. 



PROCEEDINGS OF THE MEETING 

 of Saturday November 28, 1914. 

 Vol. XVII. 



President: Prof. H. A. Lohentz. 

 Secretary: Prof. P. Zeeman. 



(Translated from: Verslag van de gewone vergadering der Wis- en Natimrkundij 

 Afdeeling van Zaterdag 28 November 1914, Dl. XXIII). 



G. J. EuAS: '-On tlio stnicture of the absurption lines Z>i and D~". (Comnumiciited by 

 Prof. H. LoRENTz), p. 720. 



G. J. Elias : "On the lowering of the freezing point in conse([nonoe of :in elastic deforniation." 

 iCommnnicuted by Prol'. H. A. Lorentz), p. 7.S'2. 



G. J. Elias : "The effect of magnotisiition of the electrodes on the electromotive force." 

 (Communicated by Prof. IT. A. Lorf.ktz), p. 745. 



H. Kamerlikgii Onnes and G. Holst: "Further experiments with li(iuid helium. M. Prelimi- 

 nary determination of the specific he.it and of the thermal conductivity of mercury at 

 tempei'atures obtainable with liquid helium, besides some measurements of thermoelectric 

 forces and resistances for the purpose of these investigations", p. 760. 



F. A. IT. SciiREiNEALVivERS: "Eiiuiiibriu in ternary systems" XVII, p. 767. 



F. A. H. SciiREiNEMAivERS and Miss W. C. he Baat: "On the «luaternary system: KCl — 

 CuCli— BaCla— II2O", p. 781. 



I/. S. Ornstein : "On the iheory of tlie string g;ilvanometer of Einthoven". fCommunicatcd 

 by Prof. H. A. Lorentz\ p. 784. 



L. S. Ornstein and F. Zernike: "Accidental deviations of density and opalescence at the 

 critical point of a single substance". (Communicated by Prof. 11. A. Lorentz), p. 793. 



A. A. Humans van den Bergii and .1. J. de la Fontaine Sciiluiter: "The identitication 

 of tracts of bilirubin in albuminous fluids" (Communicated by Prof. II. J. Hamburger), 

 p. 807. (With one plate). 



M. W. Beijerinck. : "Gummosi.s in the fruit of the Almond and the Peachalmond as a process 

 of noivnal life", p. 810. 



Ernst Cohen and W. D. Helderman: "The allotropy of Lead" I. p. 8"22. (With one plate). 



J. C. Kluyver : On an integral fornula of Stieltjes", p. 829. 



F. E. C. ScHRFFER: "On unmi.xing in a binary system for which the three-phase pressure 

 is greater than the sum of the vapour tension; of the two com])onents". (Communicated 

 by Prof. J. D. van deb Waals), p. 8.34. 



Mrs. T. Eiirenfest-Afanassjewa : "Contribution to the theory of corresponding states". 

 (Communicated by Prof. II. A. Lorentz), p. 840. 



A. F. Holleman : "The nitration of the mixed dihaloge;i benzenes", p. 846. 



J. BoESEKEN and W. D. Cohen : "The reduction of aromatic ketones. III. Contribution to 

 the knowledge of the photochemicul phenomena" (^Communicated by Prof A. F. Holle- 

 man), p. 849. 



P. EiiRENFEST and H. Kamerlingii Onnes : "Simplified deduction of the formula from the theory 

 of combiiKitiotis which Planck, usls as the basis of his radiation-theory, p. 870. 



48 

 Proceedings Royal Acad. Amsterdam. Vol. XVII. 



