X COIN TE NCT S 
CRYSTAL PHASE (On the validity of the law of partition for the equilibrium 
between a mixed) and a coexisting liquid. I. 679. 
CRYSTAL-STRUCTURE (Investigation by means of x-rays of the) of sodium- 
chlorate and sodium-bromate. 644. 
CrysTALs (Contributions to the study of liquid). V. Extinction-measure- 
ments. 807. 
— (Explanation of some interference curves of uniaxial and biaxial) by 
superposition of elliptic pencils. 1223. 
— (Research by means of Röntgen-rays on the structure of the) of lithium 
and some of its compounds with light elements. I. 1365. 
Curie (On the deviations of liquid oxygen from the law of). 1127. 
CYANOGEN-BANDS (The so-called). 727. 
DAM (Miss E. vAN) and R. BRINKMAN. The significance of the concentration 
of calciumions for the movements of the stomach caused by stimulation 
of the N. vagus. 1262. 
DARK NEBULAE (The distance of the) in Taurus. 707. Further remarks. 720. 
DaTTA (A. K.), D. N. BHATTACHARYA and Nit RaTAN Duar. Catalysis. 
VIII. 299. 
DEMOLE (R.) and J. VERSLUYs. Die Verwandtschaft der Merostomata mit den 
Arachnida und den anderen Abteilungen der Arthropoda. 739. 
DENJOY (ARNAUD). Sur une classe de fonctions admettant une dérivée 
seconde généralisée. 50. 
— Sur une propriété de séries trigonométriques. 220. 
DERIVEE SECONDE généralisée (Sur une classe de fonctions admettant une). 50. 
DEUMENS (ALPH.). Extinction by a blackened photographic plate as 
function of wavelength, quantity of silver, and size of the grains. 848. 
DEZIMALBRUCHENTWICKELUNG (Besitzt jede reelle Zahl eine)? 955. 
DIAMETER (The rectilinear) of hydrogen. 1175. 
DIAMOND (Remark on the possible existence of binding rings in). 120. 
DIAZOTISATION REACTION (The velocity of the) as a contribution to the 
problem of substitution in the benzene nucleus. 249. 
DiBBETzZ (G. C.), P. ZEEMAN, W. DE GROOT and Miss A. SNETHLAGE. 
The propagation of light in moving, transparent, solid substances. III. 
Measurements on the Fizeau-effect in flint glass. 1402. 
DIFFERENTIAL METHOD (A thermo-electrical) for the determination of transition 
points of metals at comparatively low temperatures. 977. 
DILATATION (Experimental proof for the active) of cross-striated muscle- 
tissue. 111. 
Diors (On the determination of the configuration of cyclic sis and trans) 
and the rearrangements of atoms and groups of atoms during chemical 
reactions. 69. 
