On0, NT EEN TN, nr 
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mixtures. VIII. The breaking stress of glass and the use of glass tubes in mea- 
surements under high pressure at ordinary and low temperatures. 30. 
— On the measurement of very low temperatures. XXL. On the standardizing of 
temperatures by means of boiling points of pure substances. The determination 
of the vapour pressure of oxygen at three temperatures. 333. 
BRESTER JZ, (A.) The solar vortices of HALE. 592. 
BROEK (A. J. P. VAN DEN). About the development of the urogenital canal (urethra) 
in man. 494. 
BROMATION of toluol (On the). 511. 
BROMINE (On the system: hydrogen bromide and). 504, 
BROMOBENZOIC Acip (The quantitative estimation of the products of nitration of m- 
chloro and m-), 260. 
BROUWER (L. E. J.). About difference quotients and differential quotients. 59. 
—- Continuous one-one transformations of surfaces in themselves. 788. 
— On continuous vector distributions on surfaces. 850. 
BUCHNER (B. H.) and Miss, B, J. Karsten. On the system: hydrogen bromide and 
bromine. 504. 
BURCK (w.). On the biological significance of the secretion of nectar in the flower. 445. 
CALCIUM (The permeability of bloodcorpuscles to). 718. 
CANONICAL ENSEMBLE (On the calculation of the pressure of a gas by the aid of the 
assumption of a). 781. 
CAPILLARITY (Statistical theory of). 526. 
CARBON DIOXIDE transport in leaves. 649. 
CARBONIC ACID (On the behaviour of fossil shells in water containing). 236. 
— and urethane (On the phenomena of condensation for mixtures of), in connection 
with double retrograde condensation. 913. ‘ 
CASUARINACEAE (Some systematic and phytogeographical notes on the Javanese), espe- 
cially of the State Herbaria at Leiden and at Utrecht. 415. 
car (The nervous system of a white) deaf from its birth. A contribution to the 
knowledge of the secondary systems of the auditory nerve-fibres. 225. 
CHEMICAL composition (The mineralogic and) of some rocks from Central Borneo, 398, 
Chemistry. J. J. Buanksma: “Reduction of aromatic nitro-compounds by sodium 
disulphide”, 42. 
— H. C, PRINSEN Geers: “Rapid change in composition of some tropical fruits 
during their ripening”. 74. 
= F. A. H. ScHREINEMAKERS: “Hquilibria in quaternary systems’. 138, 
— A. Smits and J. P. Wrgaur: “The dynamic conception of a reversible chemical 
reaction”. 162. 
— A. F, HorLEMAN: “The nitration of toluene”. 248, 
— A. I. HoLLEMAN: “The nitration of p-chlorotoluene”. 257. 
— A, F. Hotteman: “The quantitative estimation of the products of nitration of 
m-chloro- and m-bromobenzoic acid”. 260, 
63* 
