GEOENSERERNBL |S Vi 
Chemistry. P. vaN ROMBURGH: “The unsaturated alcohol of the essential 
oil of freshly fermented tea-leaves.” 758. 
— F. M. JAEGER: “On the Symmetry of the RöNTGENpatterns Obtained 
by means of Systems Composed of Crystalline Lamellae, and on the 
Structure of Pseudo-Symmetrical Crystals.” 815. 
CHEMOSYNTHESIS at denitrification with sulfur as source of energy. 899. 
CHOLIN (The Action of Atropin on the Intestine depending on its amount 
of). 438. 
CittTerrT (P. H. van). The Structure of the Sun’s Radiation. 73. 
COBALTAMMINES (Notes on). 576. 
Cocain (The adsorbent power of serum and brainsubstance for). On Ad- 
sorption of Poisons by Constituents of the Animal Body. I. 831. 
COEFFICIENTFUNCTIONS (On a remarkable functional relation in the theory 
of). 313. 
COHEN (ERNST) presents a paper of Nit RaTAN Duar: “Catalysis.” Part. 
VII, Notes on Catalysis in heterogeneous systems. 570. 
— presents a paper of Nit Ratan Duar: “Notes on Cobaltammines.” 576. 
COLOUR-PATTERN (The interrelations of the species belonging to the genus 
Saturnia, judged by the) of their wings. 447. 
COMBINATORIAL ANALYSIS (A problem of) connected with the determination 
of the number of different ways in which the greatest common divisor 
of two products can be found. 293. 
COMPLEXES of Plane Cubics with Four Base Points. 909. 
Compounbs (On the Condensation of Formaldehyde with some Unsaturated).51. 
CONFIGURATIONS of DESARGUES (On a Quartic Curve of Genus Two in 
which an Infinity of) can be Inscribed. 645. 
CONGRUENCE (Or an involution among the rays of space, which is 
determined by a bilinear) of twisted elliptical quartics. 493. 
— (A) of Conics. 641. 
— (A) of Orthogonal Hyperbolas. 943. 
Conics (A Congruence of). 641. 
CONVERGENCE (A general definition of uniform) with application to the 
commutativity of limits). 48. 
— (Some applications of the quasi-uniform) on sequences of real and of 
holomorphic functions. 417. 
— (On the quasi-uniform). 650. 
Coster (D.). On the rings of connecting-electrons in BRAGG's model 
of the diamondcrystal. 536. 
A 
JRAUW(T H.pe), G. L.C. La Bastipe and A. Smits. On the Phenomenon after 
Anodic Polarisation. Il. 296. 
JROMMELIN (C. A), J. Paracios MARTINEZ and H. KAMERLINGH ONNES. 
~ 
Isothermals of monatomic substances and their binary mixtures XX. 
Isothermals of neon from + 20° C, to —217° C. 108. 
