VII GON. T ESN, TS 
Chemistry. F. M. JAEGER: “On the crystalforms of some substituted 
amides of para-toluenesulphonic acid”. 347. 
— F. M. JAEGER: “Some remarks concerning the Röntgenograms obtained 
by means of micapiles composed by crossed lamellae’. 676. 
— A. Smits: “On the validity of the law of partition for the equilibrium 
between a mixed-crystal phase and a coexisting liquid’. I. 679. 
— A. Smits and J. SPUYMAN: “The thermo-electric determination of 
transition points”. I. 687. 
— P. E. VERKADE: “On the action of micro-organisms on organic 
compounds. II. The solubility of some organic acids in fatty oils”. 783. 
— A. Smits. and G. J. pe GrulTER: “The electromotive behaviour of 
aluminium”. II. 966. 
— A. Smits, L. v. D. LANDE and P. Bouman: “The existence of hydrates 
in aqueous solutions”. 969 
— A. Smits and R. Pu. Beck: “The electromotive behaviour of mag- 
nesium”’. I. 975. 
— A. Smits and J. SPUIJMAN: “A thermo-electrical differential method 
for the determination of transition points of metals at comparatively 
low temperatures’. 977. 
— F. A. H. ScHREINEMAKERS: “In-, mono- and divariant equilibria.” 
ROSAS. 
— H. J. Prins: “On the acceleration of solubility of metals in acids by 
reducible compounds.” 1449. 
CHLORO-TETRACETYL-d-fructoses (Two isomeric). 342. 
CittTeERT (P. H. vAN) and W. H. Jurrius. The general relativity theory 
and the solar spectrum. 522. 
— and H. C. BurGer. Measurements on the intensity of spectrum lines 
by the aid of the echelon. 790. 
CLASSE DE FONCTIONS. (Sur une) admettant une dérivée seconde généralisée. 50. 
COASTREEFS (On the occurrence of Halimeda in old-miocene) of East- 
Borneo. 506. 
COEFFICIENT (Temperature) of physiological processes. 44. 
COEXISTING LIQUID (On the validity of the law of partition for the equilibrium 
between a mixed crystal phase and a). I. 679. 
COHEN (ERNST) presents a paper of Dr. Nit Ratan Duar: “Catalysis. 
Part. VII. Temperature coefficient of physiological processes.” 44. 
— presents a paper of Messrs. Nir Ratan Duar, A. K. Datta and D. 
N. BHATTACHARYA: “Catalysis.” VIII. 299. 
— presents papers of Dr. Nit Ratan Duar: “Catalysis IX. Thermal and 
photochemical reactions.” 308. “Catalysis X. Explanation of some 
abnormally large and small temperature coefficients.” 313. “Catalysis 
XII. Some induced reactions and their mechanism.” 1074. 
