KONIMLinCE AKAÜEMIE VAN WETENSCHAPrEN 

 TE AMSTERDAM. 



PROCEEDINGS OF THE MEETING 

 of Friday April 24, 1914. 

 Vol XVI. 



President: Prof. H. A. Lorentz. 

 Secretary: Prof. P. Zkkman. 



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

 Afdeeling van Vrijdag 24 April 1914, Dl. XXII). 



OOisTTEIsTTS. 



Z. Kamerling: "On the regulation of the transpiration of Viscuni album and Ripsalis Cassytha. 



A pontribulion to the knowledge of the antagonism between the guard cells of the 



stomata and tlie adjacent cells of th(' epidermis". (Communicated by Prof. M. W. 



Beijkrinck), p. 1008. (WiJi one plate). 

 Tine Tammes : "The ex]3lanation of an apparent exception to Mendel's law of segregation". 



(Communicated by Prof. J. W. Moll), ]>. 1021. 

 F. Theunissen : "The arrangement of the motor roots and nuclei in the brain of Acipenser 



riithenns and Lepidosteus osseus". ^Communicated by Prof. L Bolk\ p. 1032. 

 C. E. Benjamins: "On esophageal auscaltation and tlie recording of esophageal heart soundp." 



(Communicated by Prof. H. Zwaardemaker), j). 1041. (With one plate). 

 J. J. van Laar: "A new relation between tlie critical (]uantities, and cm the unity of all 



substances in their thermic beliaviour". (Communicated by Prof. H. A. Lorentz), (Con- 

 tinued^, p. 1047. 

 W. Reinders: "The reciprocal pairs of salts KCl + NaNOg |^ NaCl -f- KNO3 and the 



mannlacture of conversion salpntre". (Communicated by Prof. F. A. II. Schreinemakers), 



1). 106.'). 

 ,1. D. VAN DER Waals : "On the critical density for associating substances"', p. 107(j. 

 J. D. VAN DER Waals Jr.: "On the law uf partition of energy." V. (Communicated by Prof. 



J. D. VAN DER Waals), p. 1082. 

 P. VAN Romhurgh and Miss D. W. Wensinr : A new hydrocarbon from the pinaeone of 



methylethylketone," p. 1088. 

 P. VAN Romhurgh and P. Muller: "1:3:.'). hexatriene," p. 1090. 

 J. BoESEKEN and J. F. Carrière: "On dichloroacetylene." ^A warning). (Communicated 



bv Prof. A. F. Holleman), p. 109.^. 

 F. U.'. Jaeger: "On tlie Isomorphy of tin Ethylsul(ihates of liie Metals of the Rare Earths, and 



on the problem of eventual inorphotroinc" relatio)is of these salts with analogous salts of 



Scandium, Indium and Beryllium." (Communicated by Prof. P. van Romhurgh), p. 1095. 

 J. H. Bonnema: "Contribution to the knowledge of the genus Kloedenella, Ulricii and 



Bassler." (Communicated by Prof. J. W. Moll), p. 1105. (With one plate). 

 W. J. DE HaaS: "The effect of temperature and transverse magnetisation on the continuous- 

 current resistance of crystallized aiitimony."' (Communicated by Prof. DU Bois), p. 1110. 

 M. J. VAN lTvEN;"The theory of BRAv.\is"(on errors in space Wor polydimensional si)ace, 



with applications to correlation" (Communicated by Prof. J. C Kai'TEYn), p. 1124. 

 F. A. H. Schreinemakers: "Equilibiia in ternary systems." XIV", p. ll.'JC. 

 Ilk. DE Vries and G. Sciiaake: "On the singular solutions of oidinary and partial differen- 



tialeqnations of the first order", p. 1152. 

 J. P. Kuenen: "The diffusion-coefficient of gases and the viscosity of gas-mixtures", p. 11(12. 

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



connection with the phenomenon of allotropv. ' (Communicated by Prof. J. D. van der 



W.\ALS), p. 1167. 

 A. Smits, S. C. Bokhorst and J. W. Terwen: "On the vapour pressure lines of the system 



phosphorus." I. (Communicated by Prof. J. D. van der Wa.vls), p. 1174. 

 Jan DE 'VRIES: "A bilinear congruence of rationed twisted quartics," p. 118(;. 

 W. IvAFTEYN: "On IIer.mite's functions", p. 1191. 

 M. W. Beijerinck: "On the nuratc ferment and the formation of physiological sj-ecies." p. 1211. 



m 



Proceedings Royal Acad. Amsterdam. Vol. XVI. 



