CONTENTS XV 



MA TT Fi ES (b. F. IF. .1.) and A. F. HoiXEMAN. Tlie Addition of Hydrogenbromide 

 to Allylhromide. 90. 



MECHANICS (On the connexion between geometry and) in static problems. 1176. 



MELTING and congelation-phenomena with iwra-azoxy-auisol. Contribution to the study 

 of liquid crystals. III. 251. 



MERCURY (E.xperimental Inquiry into the Nature of the Surface-Layers in the Reflec- 

 tion by Mercury, and into the Uilference in the Optical Behaviour of Liquid 

 and Solid). 678. 



— (On thermoelectric currents in) 1262. 

 METALS (On the Electrochemical Behaviour of). L58. 



METAZOA (The egg-cleavage of Volvox globator and its relation to tiie moveiuenf of 



the adult form and to the cleavage types of). 243. 

 Meteorology. S. W. Vtsskr: "On the dlH'raction of the light in the formation of iialos". 



II. A research of the colours observed in halo-phenomena". 119, 



— (.". ScHOUTE, F. A. VAN IIeyst and N". E. Groeneveld Meyer: "An instru- 

 ment to be used by the ])ilot of an aeroplane to measure the vertical velocity 

 of the machine". 468. 



MEYER (g.) and F. E. C. Scheffer. On an Indirect Analysis of Gas- Hydrates by a 

 Thermodynamic Method and Its .Application to the Hydrate of Sulphuretted Hydro- 

 gen. I. 1204. IL 1338. 



MEIJER (n. e. groeneveld), C. Schoute and F. A. van Heust. An instrument 

 to be used by the pilot of an aeroplane to measure the vertical velocity of the 

 machine. 468. 



Microbiology. M. W. Beijerinck: "Oidium lactis, the milkmould, and a simple method 

 to obtain pure cultures of anaerobes by means of it". 1219, 



— M. W. Beijerinck: "The significance of the tubercle bacteria of the Papilionaceae 

 for the host plant". 183. 



MILKMOULD (The) — Oidium lactis — and a simple method to obtain pure cultures 



of anaerobes by means of it. 1219. 

 MILKY WAY (The Distribution of the absolute Magnitudes among the Stars in and 



about the). 1st Communication. 518. 2nd Communication. 870. 

 MOLENGRAAPF (g. A. F.) presents a paper of Dr. H. A. Brodwer : "On the 



Non-existence of Active Volcanoes between Pantar and Dammer (East-Indian 



archipelago), in Connection to the Tectonic movements in this Eegion". 795, 



— presents a paper of Dr. H. A. Brouwer: "On the Age of the Igneous 

 Rocks in the Moluccas". 803. 



— presents a paper of Dr. H. A. Brouwer: ''On Reefcaps". 816. 



MOLL (w. J. H.) and L. S. Ornstein. Contributions to the study of liquid crystals. 



111. Melting and congelation-phenomena with para-azoxy-anisol. 2B4. IV. A 



thermic Effect of the Magnetic Field. 259. 

 MOLUCCAS (On the Age of the Igneous Rocks in the). 803. 



MOUSE (The Involution of the Placenta in the) after the Death of the Embryo. 231. 

 MOVING system (On the number of degrees of freedom of the geodetically) and the 



enclosing euclidian space with the least possible number of dimensions. 607. 



