CONTENTS. IX 



KA MERLIN OH ONNEs (d.) and G. H. ÏABIUS. Repetition of de Heen's and 

 Teichner's experiments on the critical state. 215, 



KAMERLING H ONNES (h.) and W. H. Keesom. Contributions to the knowledge 

 of the i/'-surface of van der Waals. XV. The case that one component is a gas 

 without cohesion with molecules which have extension. Limited miscibility of 

 two gases. 2nd Continuation. 231. XVI. On the gasphase sinking in the liquid 

 pl.ase for binary mixtures in the case that the molecules of one component exert 

 only a feeble attraction. 274-. 



kamerlingh onnes (h.) and W. H. Keesom (Some remarks on the last 

 observations of Prof.). 238. 



— On the equation of state of a substance in the neighbourhood of the critical 

 point liquid-gas. I. The disturbance function in the neighbourhood of the critical 

 state. 60o. II. Spectrophotometrical investigation of the opalescence of a substance 

 in the neighbourhood of the critical state. 611. 



kapte YN (J. c.) presents a paper of Dr. W. de Sitter: "On periodic orbits of the 

 type Hestia". 47. 



— On the mean star-density of different distances from the solar system. 626. 



— presents a paper of Dr. W. de Sitter: "On the masses and elements of Jupiter's 

 satellites and the mass of the system". 653. (Continued). 710. 



K A p T E Ï N (w.). On an infinite product represented by a definite integral. 3'i7. 



— On the multiplication of trigonometrical series. 558. 



keesom (w. h.) and H. Kamerlingh Onnes. Contributions to the knowledge of 

 the J,-surface of van der Waals. XV. The case that one comjwnent is a gas 

 without cohesion with molecules which have extension. Limited miscibility of 

 two gases. 2ucl Continuation. 23L XVI. On the gasphase sinking in the liquid 

 phase for binary mixtures in the case that the molecules of one component exert 

 only a feeble attraction. 274. 



— (Some remarks on the last observations of). 238, 



— On the equation of state of a substance in the neighbourhood of the critical 

 point liquid-gas. I. The disturbance function in the neighbourhood of the critical 

 state. 603. It. Spectrophotoraetrical investigation of the opalescence of a substance 

 in the neighbourhood of the critical state. 611. 



kluyver (j. c). On the cyclic minimal surface. 750. 



KOORDERS (s. H.). Contribution No. 1. to the knowledge of the flora of Java. 



674. Continuation. 762. 

 KORT E WEG (d. J.) presents a paper of Dr. J. A. Barrau: "The extension of 



the configuration of Kummer to spaces of {2p — 1) dimensions". 263. 

 -~ presents a paper of Dr. J. A. Barrau: "The analogon of the Cf. of Kummer in 



seven-dimensional space". 503. 

 kummer (The extension of the configuration of) to spaces of (2/o— 1) dimensions. 263. 



— (The analogon of the Cf. of) in seven-dimensional space. 503. 



LAAR (j. J. V A n). On the course of the plaitpoint line and of the spinodal lines, 

 also for the case, that the mutual attraction of the molecules of one of the 

 components of a binary mixture of normal substances is slight. 34. 



