KONINKLIJKE AKADEMIE VAN WETENSClIAlTliN 

 TE AMSTERDAM. 



PROCEEDINGS OF THE MEETING 

 of Saturday June 27, 1903. 



(Translated lïoni: Verslag van de gewone vergadering der Wis- en NaUuukundige 

 Afdeeling van Zaterdag '21 Juni 1U03, Dl. Xll). 



OOlsTTElvrTS. 



II. W. Bakhuis Roozeboom: "The boiling-point curves of tlie system sulphur and chlorine", 

 p. 63. 



A. S-Mrrs and L. K. Wolff: "The velocity of transformation of carbon monoxide" (II). 

 (Communicated by Prof. II. W. Bakhuis Roozkboom), p. CG. 



J. K. A. Wkrthkim Salomonsok: "A new law concerning the relation between stimulus and 

 etlect." (Communicated by Prof. C. Winkler), p. 73. (With one i)late). 



Extract from the Report made by the Committee of advice for the according of the Buys 

 BALLOT-Medal, p. 78. 



C. A. J. A. OuDKMANS and C. J. Komng : "On a Sclerotinia hitherto unknown and injurious 

 to the cultivation of Tobacco (Sclerotinia Nicotianae Ouü. et Koning). Postscript, p. 85. (With 

 one plate). 



A. Gouter: "The cause of sleep." (Communicated by Prof. C. Winkler), p. 86. 



C. A. LoiiRY DE Hruyn and C. L. Jungius: "The condition of hydrates of nickelsulphate in 

 methylalcoholic solution", p. 91. 



C. A. LoBRY DE Bruyn ar.d C. L. Jungius : "The conductive power of hydrates of nickel" 

 sulphate dissolved in metiiylalcohol", p. 94. 



C. A. LoBRY' DE Bruyn : "Do the Ions carry the solvent with them in electrolysis", p. 97. 



C. L. Jungius : "The muttial transformation of the two stereo-isomeric methyl-(/-glucosides." 

 (Communicated by Prof. C. A. Lobry de Bruyn), p. 99. 



S. Ty.mstra BzN. : "The electrolytic conductivity of solutions of sodium in mixtures of cthyl- 

 or metiiylalcohol and water". (Communicated by Prof. C. A. Lobry de Bruyn), p. 104. (With 

 one platfc). 



W. Eintiioven: "The string galvanometer and tlie human electrocardiogram", p. 107. (With 

 two plates). 



J. E. Versciiaffelt : "Contributions to the knowledge of van der Waals' ,i-surface. VII. 

 (part 4), The equation of slate and the i-surface in the immediate neigh.bourhood of the critical 

 state for binary mixtures with a small proportion of one of the components". (Communicated 

 by Prof. II. Kamerlingh Onnes), p. 11.5. (With one plate). 



J. D. VAN DEK Waals : "The liquid state and the equation of condition", p. 123. 



J. J. van Laar: "On the possible forms of the melting point-curve for binary mixtures of 

 isomorphous substances." (Communicated by Prof. H. W. Bakhuis Roozeboom), p. 151. (With 

 one plate). 



Tlie following papers were read: 



Cliemistry. — "Tlie bo'dliuj-point curves of the system sulphur and 

 ch/orlue." By Prof. H. W. Bakhuis Roozeboom. 

 (Communicated in the meeting of May IJO, i'J03). 



Biliary systems in which the funiiatioii uf cuiupiex molecules may 

 be assumed to take place in a greater or snialler degi-ee have been 

 frequently invesligaled as regards the equilibria between a liquid 



5 



Proceedings Royal Acad, Amsterdam. Vol. VI. 



