KONINKLUKE AKAÜEMIK VAN WETENSCHAPPEN 

 TE AMSTERDAM. 



PROCEEDINGS OF THE MEETING 



of Saturday October 31, 1914. 



Vol. XV il 



President: Prof. H. A. Lorentz. 

 Secretary: Prof. P. Zeeman. 



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

 Afdeeling van Zaterdag 31 October 1914, Dl. XXllI). 



COlsTTEIsrTS. 



G. VAN RiJ^'BERK : " 'n the nerve-distribntion in tlie trunk- dennatoma." (Communicated 



by Prof. C. Winkler\ p. 6.3-2. 

 Erxst Cohen and W. D. Helderman: "The AUotropy of Cadmium" IV. p. 6.38. 

 Ernst Cohen and W. D. Hei.derm.\n: "Tlie AUotropy of Zinc" III, p. 641. 

 Ernst Cohen and ,T. C. v.iN den Bosch: "The AUotropy of Antimony", I. p. 645. 

 A. P. N. Franchimont and H. J. B.\cker: "The Coloration of some derivatives of Pi- 



crylmethylamide with alkalies", p. 647. 

 A. P. N. Fr.anchimont and H. J. Backer: "a-Sulpho-propionic acid and its resolut'on into 



optically active isomerides", p. 653. 

 >'iss Yi. J. Folmer: "A new elpctrometer, specially arianeed for radio-active investigations." 



Part I. (Communicated by Prof. H. Haga), p. 659. 

 A. Smits : "The metastable continuation of the mixed crystal series of pseudo-components in 



connection with the plienomenun allotropy". II. (Communicated by Piof. J. D. van der 



Waai.s). p. 672. 

 A. Smits and S. C. Bokhorst: "On the vapour pressure lines of the system phosphorus". II. 



(Communicated by Prof. J. D. van der Waals), p. 678. 

 A. Smits and A. H. W. Aten: "The application of the theory of allotropy to electro-motive 



equilibria." III. (Communicated by Prof. J. D. van der Waals), p. 680. 

 F. E. C. Schkffer: "On gas cquilibrin, and a test of Prof, van df.r Waals Jr.'s formula". I. 



(Communicated by Prof. J. D. van der Waals), p. 695. 

 W. Reinders: "Efjuilibria in the system Pb— S— O ; the roasting reaction process". (Commu- 

 nicated by Prof S. Hocgewerff), p. 703. 



Proceedings Royal Acad. Amsterdam. Vol. XVII. 



