KONINKLIJKE AKADEMIE VAN WETENSCHAPPEN 

 TE AMSTEKDAM. 



PROCEEDINGS OF THE MEETING 

 of Saturday January 30, 1904. 



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

 Afdeeling van Zaterdag 30 Januari 1904, Dl. XII). 



OOIsTTElsTTS. 



W. Ai.i5Ki:i»A VAN EiiEXSïKiX: "Dibcuzal- and benzalinetliyli^liicosides." (Commiuiicated by 

 l'ruf. C. A. LoBPa- bk BRrvN), p. 452. 



C. H. Sluiter: "The transformation of isonitrosoacetoplienünsodiiim into sodium benzoate and 

 liydrog^'n cyanide." (^Communicated by Prof. C. A. Lobry uk Bruyx), p. 453. 



II. W. Bakiiiis Roozeboom and A. H. W. Aten : "Abnormal solubility lines in binary 

 mixtures owing to the existence of compounds in t'le solution", p. 456. 



M. W. Beijerinck and A. van Delden: "On the bacteria which are active in flax -rotting", 

 )). 4G2. (With one plate). 



,1. K. A. Wertiieim Salomoxson: "On tactual after-images." fCommunicated by Prof. C. 

 Winkler), p. 481. 



A. Smits : "The course of the solubility curve in the region of critical temperatures of binary 

 mixtures." (Communicated by Prof. H. W. Bakhuis Roozeboom), p. 484. 



C. A. J. A. OuDEM.\NS: "Exosporina Laricis Ouü. — A new microscopic, fungus occurring on 

 the Larch and very injurious to this tree", p. 498. (With one plate). 

 P. II. SniouTE: "Pi.ücker's iiumbeis of a curve in Sn\ p. 501. 



,1 AN i)E Vries: "On systems of conies belonging to involutions on rational curves", p. 505. 

 Jan UK Vries : "Fundamental involutions on rational curves of order five", p. 508. 

 (.'. II. Brinkman: "The dctcrminution of tlie pressure with a closed air-mauometer." (Commu- 

 nicated by Prof. J. 1). VAX ukr Waals), p. 510. 



J. J. VAN Laar: "on the shape of mellingpoint-ciirves for binary mixtures, when tlie latent 

 lieat rccjuirud fur the mixing is very small or =0 in the two phases", (.3rd communication). 

 (Communicated by Prof. H. W. Bakhuis Roozeboom), p. 518 (With one plate). 



W. II. Keesom : "Isothermals of mixtures of oxygen and carbon dioxide. I. The calibration 

 of manometer and piezometer tubes", p. 5.32. II. "The preparation of the mixtures and thecom- 

 ])res5ibility at small densities", p. 541. III. "The determination of isothermals between 60 and 

 140 atmospheres, and between — 15° C. and + 60° C", p. 554. IV. "isothermals of pure carbon 

 dioxide between 25° C and 60*^ C. and between 60 and 140 atmosphcies", p. 565. V. "Isother- 

 mals of mixtures of the molecular compositions 0. 1047 and 0.1994 of oxygen, and the compa- 

 rison of them with those of pure carbon dioxide", p. 577 and 588. (Witli 2 plates). VI. "Influence 

 of gravitation on the phenomena in the neighbourhood of the plaitjoint with binary mixtures", 

 p. 593. 'Communicated by Prof. II. Kamerlixgu Onnes). 



II. Vj. J. G. m: BoiS: "Ilysteretic oncntatic-iihenomcna." (Communicated by Prof. J. D. van 



DER WaAI.S), )), 597. 



The following |>n})ers were read : 



30 



Proceedings Royal Acad. Amsterdam. Vol. VI. 



