KONINKLIJKE AKADBMIE VAN WETENSCHAPPEN 

 TE AMSTERDAM. 



PROCEEDINGS OF THE MEETING 

 of Saturday February 23, 1907. 



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

 Afdeeling van Zaterdag 23 Februari 1907, Dl. XV). 



COiTTEITTS. 



A. V. N. Fuynciiimont: "Contribution to the knowledge of the action of absolute nitric acid 

 on heterocyclic compounds" p. 600. 



F. A. II. SchreinemakerS : "On a tetracomponent system with two liquid phases", p. 607. 



J. Boëseken : "On catalytic reactions connected with the transformation of yellow phosphorus 

 into the red modification". (Communicated by Prof. A. F. Holleman), p. 613. 



J. D. van dek Waals : "Contribution to the theory of binary mixtures", p. 621. (With one 

 plate). 



Ph. Kohkstamm : "On the shape of the three-phase line solid-liquid-vapour for a binary 

 mixture". (Communicated by Prof. J. D. van deu Waals), p. 639. 



Ph. Kohnstamm: "On mctastable and unstable equilibria solid-fluid". (Communicated by Prof. 

 J. D. van der Waals), p 648. (With one plate). 



W. II. KeeSOM : "Contributions to the knowledge of the i-surface of van dkk Waals. XIII. 

 On the conditions for the sinking and again rising of a gas phase in the liquid phase for 

 binary mixtures". (Continued). (Communicated by Prof. II. KamerlinGH Onnes). p. 660. 



H. Kamerlingh Oxnks and Miss T. C. Jolles : "Contributions to the knowledge of the 

 ^-surface of van der Waals. XIV. Graphical deduction of the results of Ktenens experiments 

 on mixtures of ethane and nitrous oxide", p. 664. (With 4 plates). 



P. Niki wenhiyse: "On the origin of pulmonary anthracosis". (Communicated by Prof. 

 C. II. II. Spronck), p. 673. 



41 



Proceedings Royal Acad. Amsterdam. Vol. IX. 



