X C o N 'I F. N T S. 



HüLLEMAN (a. F.) presents ;i paper of Dr. E. II. JiücilNEii: "Colloids and llie 

 pliase rule". CO. 



— presents a paper of Prof. A. Smits: "The passivity of raetals iu the light of the 

 theory of allotropy". 191. 



— ïhe nitration of toluols and its derivatives chlorated in the side-chaiu. l'J2. 



— presents a paper of Prof. J. Böeseken and K. H. A. SiLLEVis: "The stability 

 of cyclo hydrocarbons in connection with their configuration. The transformation 

 of cyclo-hexene into benzene and cyclo-hexaue". 499. 



— presents a paper of Prof. .1. Böeseken and P. E. Verkade: "The mechanism 

 of the acid formation of aliphatic acid anhydrides in an excess of water". 718. 



— presents a paper of Prof. J. Böeseken and J. E. Carrière: "On dichloroacetylene". 

 1093. 



— presents a paper of Prof. J. Böeseken and W. D. Cohen : "On the reduction 

 of aromatic ketones". 91. II. 962. 



HONING (j. A.). Hybridisation with Canna indica. 835. 



II o o E N u u Y z E (c. J. c. VAN) and .1. Nieuwenhuyse. Influence of alcohol upon 



the respiratory exchange during rest and during muscular exercise. 164. 

 IIOOGEWERFF (s.) presents a paper of Mr, A. J. van Peski: "On a new 



method of preparing carboxylic anhydrides". 969. 

 H o V Y (a. j.). On the relation between the quantity of white and grey substance in 



the central nervous system. 311. 

 human skull (On pteric sutures and pteric bones in the). 634. 

 hybridisation with Canna indica 835. 



HYDROCARBON (A new) from the pinacone of methyletbylketone, 1088. 

 hydrochloric acid (Concerning combinations of aniline with). 5.53. 

 HYDROGEN (Liquid-densities of) between the boiling point and the triple point. 2 15. 



— (The vapour pressures of) from the boiling point down to near the triple point. 140. 

 IGAST in Livonia (On the pseudometeorite of). 292. 



INDIAN ARCHIPELAGO (At what time the) is separated from the Tethys? 921. 



INDIUM and Beryllium (On the isomorphy of the ethylsulphates of the metals of the 



rare earths, and on the problem of eventual morphotropic relations of these 



salts with analogous salts of Scandium). 1095. 

 INJECTION (On the formation of antibodies after) with sensitized antigens. 640. 

 INTEGRALECJUATION (Applications of Sonine's extension of Abel's). 588. 

 INTESTINAL MOVEMENTS (Velocity of the) in ditierent mammals. 65. 

 INVERSION-TEMPERATURE (RöNTGENpatterns of boracite, obtained above andbslow its). 792. 

 isothermal» of di atomic substances and their binary mixtures. XIII. Liquid-densities 



of hydrogen between the boiling point and the triple point; contraction of hydrogen 



on freezing. 245. 



— of monatomic substances and their binary mixtures. XV. The vapour pressure 

 of solid and liquid argon from the critical point down to — 206° C. 477. 



JAEGER (f. M.). On the isomorphy of the ethylsulphates of the metals of the rare 

 earths, and on the problem of eventual morphotropic relations of these salts with 

 analogous salts of Scandium, Indium and Beryllium. 1095. 



