COINS TEEN: TS IX 
COHESION FORCES (The) in the theory of VAN DER Waars. 943. 
COLLOIDAL sulphurcompounds of ruthenium. 95. 
COLOUR-MARKINGS (The) on the body of Lepidoptera, compared to those of 
their larvae and pupae, and to those of their wings. 363. 
Compounps (On the action of micro-organisms on organic) II. The solubility 
of some organic acids in fatty oils. 783. 
— (On the acceleration of solubility of metals in acids by reducible). 1449. 
CONCENTRATION of calciumions (The significance of the) for the movements 
of the stomach caused by stimulation of the N. vagus. 1262. 
CONDENSATION-PRODUCTS (On some) of aromatic aldehydes and amines. 74. 
CONDUCTION OF HEAT (The process of solidification as a problem of). 616. 
CONGRUENCE of REYE (An involution of rays defined by a) and an involutory 
homology. 466. 
CONGRUENCES OF RAYS (Properties of). 1206. 
CORALREEFS (On the relation between the pleistocene glacial period and 
the origin of the Sunda-sea (Java- and South China-sea), and its influence 
on the distribution of) and on the land- and freshwater fauna. 395. 
CRANIAL CAPACITY (On the significance of the large) of homo neander- 
talensis. 1271. 
CRETACEOUS AGE (Fossils of) in mesozoic deep-sea deposits. 997. 
CREVELD (S. VAN) and R. BRINKMAN. A direct proof of the impermeability 
of the bloodcorpuscles of man and of the rabbit to glucose. 1256. 
— and J. DE Haan. The interchange between blood-plasm on one hand 
and humor aqueus and cerebro-spinal fluid on the other hand, studied 
from their sugar-percentages and in connection with the problem of 
combined sugar. 1343. é 
CRITICAL QUANTITIES (On the) of mercury in connection with the increase 
of the molecular attraction on dissociation of the double molecules. 
E267, 1 2 282. 
CROMMELIN (C. A.), H. KAMERLINGH ONNES and E. Matuias. The 
rectilinear diameter of hydrogen. 1175. 
— and H. KAMERLINGH ONNES. Methods and apparatus used in the 
cryogenic laboratory. XVIII. Improved form of a hydrogen vapour 
cryostat for temperatures between —217 C. and —253°C. 1185. 
CRYOGENIC LABORATORY (methods and apparatus used in the). XVIII. 
Improved form of a hydrogen vapour cryostat for temperatures between 
EST GC. and —253° Cri kI85: 
CRYSTALFORMS (On the) of some substituted amides of para- toluenesulphonic 
acid. 347. 
CRYSTALLIZATION and resorption in the magma of the volcano Ruang. 
(Sangi Islands). 561. 
