CONTENTS. IX 



Physics. E. van Everdingen Jr.: "The galvauomagnetic and tliermomagnetic pbenomena 

 in bismuth." 72. 404. 473. 



— J. Verschaffelt : "On the deviation of de Heen's experiments from vax der 

 AVaals' law of cüutinuity." 82. 



— Ch. M. a. Hartman : «The composition and the volume of the coexisting vapour_ 

 and liquid-phases of mixtures of methylchloride and carbonic acid." 83. 



— li. A. LoiiESTZ : //Considerations concerning the influence of a magnetic field 

 on the radiation of light." 90. 



— J. D. VAN DER Waals : //Simple deduction of the characteristic equation for 

 substances with extended and composite molecules." 138. 



— H. Kamerlingh Onnes: //Description of a standard open manometer of reduced 

 height with transference of pressure by means of compressed gas." 154. 313. 



— N. J. VAN DER IjEE : /^The influence of pressure on the critical temperature of 

 complete mixture". 158. 



— J. D. VAN DER Waals : //Variation of volume and of pressure in mixing". 

 (I) 179. (II) 232. (Ill) 390. 



— J. D. VAN DER Waals : //On the accurate determination of the molecular weight 

 of gases from their density". 198. 



— J. Verschaffelt : //Measurements on the system of isothermal lines near the 

 plaitpoilit and especially on the process of the retrograde condensation of a mixture 

 of carbonic acid and hydrogen." 243. 288. 323. 



— L. H. Siertsema: //Measurements on the magnetic rotatory dispersion of gases." 

 243. 296. 



— H. A. LoRENiz : »0n the vibrations of electrified systems, placed in a magnetic- 

 field. A contribution to the theory of the ZEEMAK-eftect". 263. 340. 



— J. J. VAN Laar : //Calculation of the second correction to the quantity // of the 

 equation of condition of van der Waals." 273. 



— H. Haga and C. II. Wind: //On the dift'raction of X-(RöNTGEN)rays". 821. 420. 



— H. A. LoREXTZ : //On a simplified theory of the electrical and optica] pheno- 

 mena in moving systems." 323. 427. 



— H. A. LoRENTz : //Stokes' theory of aberration in the supposition of a variable 

 density of the ether". 323. 443. 



— .T. Verschaffelt : //Measurements on the change of pressure by substitution of 

 one component by the other in mixtures of carbonic acid and hydrogen". 328. 



— J. D. van der Waals : //An anomaly in the course of the plaitpointcurve in a 

 mixture of anomalous substances". 385. 



— L. Boltzmann : ,/On the characteristic equation of v. d. Waals". 398. 



— J. D. VAN der AVaals : //On the deduction of the characteristic equation". 468. 

 Physiology. H. J. Hamburger: //On the influence of solutions of salts on the volume 



of animalcells." 26. 103. 371. 



— C. Winkler. //Attention and Kespiration." 121. 



— B. J. Stokvis presents the dissertation of Dr. G. Bellaar Spruït : //On the 

 physiological action of mathylnitramine in connection with its chemical consti- 

 tution". 321. 



