Chemistry. H. B,. Kruyt: “The equilibrium solid-liquid-gas in binary systems which 
present mixed crystals”. 1st Communication. 537. 
— F. M. Jaeger: “Studies on Tellurium. 1. The mutual behaviour of the 
elements: sulphur and Tellurium”. 602. 
CHROMOSPHERIC light (On the origin of the). 446. 
cohen (ernst) and J. Olte Jb. The atomic volume of allotropic modifications 
at very low temperatures. 437. 
cohen (ernst) and W. Tombrock: The electromotive force of zinc amalgams. 98. 
compounds (On the) of ammonia and water. 186. 
— (On heterogeneous equilibria of dissociating). 257. 
copper (On the action of active) on linalool. 104. 
cortex (Surface and structure of the) of a microcephalic idiot. 202. 
creatine (About the formation of) in the muscles at the tonus and the development 
of rigidity. 550. 
crystals (The equilibrium solid-liquid-gas in binary systems which present mixed). 537. 
cubic (On pairs of points which are associated with respect to a plane). 711. 
cubic curve (On polar figures with respect to a plane). 776. 
cubic involution (The) of the first rank in the plane. 751. 
deepsea deposits (On oceanic) of Central-Borneo. 141. 
diethylaniline (On the nitration of). 297. 
dimorphism (The abnormal reduction of an aromatic nitrocompound with tin and 
hydrochloric acid and an interesting case of). 305. 
distyuum stellare O. K. (On) and Aporosa eampanulata J. J. S. 341. 
dorp (w. a. van) presents a paper of Dr. B. A. Weerman: “On a synthesis of 
aldehydes and indols”. 42. 
droogleever portuyn (a. b.). On the motor facialis- and abducens-nucleus of 
Lophius piscatorius. 44. 
dutilh (h.) On partial racemism. 393. 
electric discharge in gases (Remarks on the experiments of Wilson and Martyn 
on the velocity of rotation of the) in a radial magnetic field. 428. 
electrogram (Communications about the) of the atrium cordis. 680. 
electromagnet (An improved semicircular). 189. 
electromotive force (The) of zinc amalgams. 98. 
ELEMENTS (The thermomagnetic properties of). 596. 
elements sulphur and tellurium (The mutual behaviour of the). 602. 
emulsion laevulan, the product of the action of viscosaccharase on cane sugar. 795. 
E N £ L A A R (c. J.). On the action of active copper on linalool. 104. 
equation of abel (Contribution to the solution of the functional). 208. 
equilibria (On heterogeneous) of dissociating compounds. 257. 
— (The photo-and electrochemical). 356. 
equilibrium (On the stable positions of), of floating parallelepipeda. 383. 
— (The) solid-liquid-gas in binary systems which present mixed crystals. (1st Com- 
