COON, ET E NoE, Ss iX 
Geology. H. A. Brouwer: “Leucite-rocks of the Ringgit (East-Java) and their contact- 
metamorphosis”. 1238, 
GRAPHITE (The effect of temperature and transverse magnetisation on the resistance of). 148. 
GRAVITATION (On absorption of) and the moon’s longitude. Part 1. 808. Part 2. 824. 
GRAVITATION FIELD. (On EINsTEIN’s theory of the stationary). 1187. 
HAAS (W. J. DE). Isotherms of diatomic gases and of their binary mixtures. X. Control 
measurements with the volumenometer of the compressibility of hydrogen at 
26° C. 295 XI. On determinations with the volumenometer of the compressibility 
of gases under smal] pressures and at low temperatures. 299. 
HAAS (W. J. DE) and H. KAMERLINGH ONNes. Isotherms of diatomic substances and 
of their binary mixtures. XII. The compressibility of hydrogen vapour at and 
below the boiling point. 405. 
HALL-EFFECT (On the) and the change in the resistance in a magnetic field at low 
temperatures. I. 307. II. 319. IIT. 649. IV. 659. V. 664, VI. 981. VII. 988. VIJL. 997. 
HAMBURGER (H. J.) presents a paper of Mr. J. SNaperr: “Comparative researches 
on young and old erythrocytes”. 282. 
HAMBURGER (H. J.) and J. pe Haan. The effect of fatty acids and soaps on 
phagocytose. 1290. 
HEART (The electrocardiogram of the foetal). 1360. . 
HELDER (‘The periodic change in the sea level at) in connection with the periodic 
change in the latitude. 1441. 
HELIUM (Further experiments with liquid). H. VIT. 1406. 
HEMINOPSIA (On localised atrophy in the lateral geniculate body causing quadrantic) 
of both the right lower fields of vision. 840. 
HEU xX (J. W. LE). On some internal unsaturated ethers. 19. 
_HEXATRIENE Ì, 3,5. 1184. 
HOLLEMAN (A. F.) presents a paper of Dr. E. H. BücaNer: “The radioactivity of 
rubidium and potassium compounds”. II. 22. 
— presentsa paper of Prof. A. Smits: “On critical end-points in ternary systems”. IT. 184. 
— presents a paper of Prof. J. BöESEKEN : “On a method for a more exact deter- 
mination of the position of tbe hydroxyl groups in the polyoxy compounds”, 216. 
— presents a paper of Prof. A. Surrs: ‘‘Extansion of the theory of allotropy 
monotropy and enantiotropy for liquids”. 361. 
— presents a paper of Prof. A. Smirs: “The application of the theory of allotropy 
to the system sulphur”. II. 369. 
— presents a paper of Prof. A. Smirs: “The inverse occurrence of solid phases in 
the system iron-carbon”. 371. 
— presents a paper of Mr. J. R. Karz: “The antagonism between nitrates and 
calciumsalts in milkeurdling by rennet”. 434. 
— presents a paper of Dr. A. H. W. Aten: “On a new modification of sul- 
phur”. 572. 
— presents a paper of Dr. H. L. pr Leeuw: “On the relation between sulphur 
modifications”. 584. 
— presents a paper of Prof, A, Smits and Dr, H. L, pe Leeuw : “The system tin”. 676. 
