IT C O N T E N Ï 3 



BROUWER (l. e. J.) presents a paper of Mr. B. P. Haalmeuer: 'Elemental» 

 surfaces of the third order". 101. 2nd Communication. 304. 3rd Communication. 

 736. 4th Communication. 1246. 



— presents a paper of Dr. H. B. A. Bock W]NKEL: "Some considerations on complete 

 transmutation". 3rd. Communication. 449. 4th Communication. 60Ü. 5th Coramu- 

 nicntion. 893. 6th Communication. 910. 7th Communication. 924. 



— On linear inner limiting sets. 1192. 



B R o w N I A N MOVEMENT (Oil the theory of the) and the experiments of Brillouin. 642. 



— (A. paradox in the theory of the). 680. 



— (On the theory of the). 12B4. 



BRUIN (g. d e). On the replacement, in amides, of an alkvlanilino group by an 



aniline group, by heating with aniline hydrochloride. 983. 

 BRUYN (c. A. LOBRY D e) and A. Smits. On the electrochemical behaviour of 



Nickel. 394. 

 BÜCHNER (e. h.). The boiling point line of the system: hexane-nitrobenzene. 322. 

 BURGER (h. c). On the theory of the Browniax movement and the Experiments 



of Brillouin. 642. 



BURGERS (j. M.). Adiabfltic invariants of mechanical systems. I. 149. 11. 158. III. 163. 



— The spectrum of a rotating molecule according to the theorv of quanta. 170. 

 BURGERS (j M.), P. G. Cath and H. Kameblisqh Onnes. On the measurement 



of very low temperatures. XXVII [. 1163. 

 cadmium (On the allotropy of). VI. 1177. 

 CABUiNAAL (j.) presents a paper of Dr. W. A. Wuthoff: ".A relation between 



the polytopes of the Cggo-family". 9G6. 



— presents a paper of Prof. W. A. Veksluys: "On satellite points on curves, given 

 by the equations : .r = atl^, y = üf^ . 1054. 



OATH (p. G.), C. A. Crommelin and 11. Kamerlingh Onnes. Isotherraals of di-atomic 

 substances and their binary mixtures. XIX. 178. 



— On the measurement of very low temperatures. XX VII. 991. 1155. 



— Isothermals of raonatomic substances and their binary mixtures. XIX. 1160. 

 OATH (p. G.), H. Kamerlingh Onnes and J. M. Burgers. On the measurement of 



very low temperatures. XXVIII. 1163. 

 CELEBES (On some fossils from), believed to belong to the Oligocene. 793. 

 CUAMP GRAVIFIQUE (Sur les equations différentielles du). 97. 

 Chemistry. ■!. P. TreuB: 'On the saponification of fats'". 1. 35. II. 343. 



— P. VAN RoMBURGH and J. M. van der Zanden: "On polymers of methyl 

 chavicol'. 64. 



— C. F. VAN DuiN: "Action of organo-magnesium compounds on, and reduction 

 of ciceol". 66. 



— H. I. Waterman: "Influence of diflerent compounds on the destruction of 

 monosaccharids by sodiumhydroxide and on the inversion of sucrose by hydrochloric 

 acid. Constitution-formula of ^-amino-acids and of betain". 88. 11. 383. HI. 581. 



— H. I. Waterman: "Araygdalin as nutriment, for Fusarium". 185. 



