VI CONTENTS 



Cyanide-process (Nitrogen fixation by means of the) and atomic-structure. 



480. 

 Cytological investigations on apogamy in some elementary species of 



Erophila verna. 349. 

 Darkgrowth-responses. 378. 

 DÉCAPODES (Description de crustacés) nouveaux des terrains tertiaires de 



Borneo. 489. 

 Deposits (On tertiary marine) with fossil fishes from South Celebes. 159. 

 Diamond (On the occurrence of) as an accessory mineral in olivine and 



anorthite bearing bombs, occurring in basaltic lava, ejected by the 



volcano Gunung Ruang (Sangir-Archipelago north of Celebes). 510. 

 Diaphragm (On the influence of the vagi on the frequency of the action 



currents of the) during its respiratory movements. 771. 

 Diekmann (J. J.) and J. P. Wibaut. Researches on the addition of water 



to ethylene and propylene. (Preliminary communication). 321. 

 DiK (H. W. J.) and P. Zeeman. A relation between the spectra of ionized 



potassium and argon. (Second comm.). 498. 

 Dimensionsbegriff (Ueber den natiirlichen). 795. 

 DiNGE MANSE (Elisabeth) and J. P. Wibaut. The synthesis of some 



pyridylpyrroles. 426. 

 Dirichlet's series (A theorem concerning power-series in an infinite number 



of variables, with an application to). 278. 

 Dispersion lines (The relation between the widening and the mut\ial influ- 

 ence of) in the spectrum of the sun's limb. 329. 

 Dissociation constant (The second) of sulphoacetic and x-sulphopropionic 



acids. 83. 

 Doormantop (On the rocks of) in Central New Guinea. 191. 

 Droste (J.). An application of the theory of integral equations on the 



determination of the elastic curve of a beam, elastically supported on 



its whole length. 247. 

 Drying (The influence of intensive) on internal conversion. I. 266. 

 DussER de Barenne (J. G.) V. Barenne (J. G. Dusser de). 

 Dijkstra (O. H). The development of the shoulder-blade in man. 297. 

 Egg INK (W. A. N.) and H. R. Kruyt. The electro-viscous effect in 



rubbersol. 43. 

 Einthoven (W. F.). The string galvanometer in wireless telegraphy. 635. 

 Elastic curve (An application of the theory of integral equations on the 



determination of the) of a beam, elastically supported on its whole 



length. 237. 247. 

 Electric resistance (On the) of pure metals, etc. XII. Measurements 



concerning the electric resistance of indium in the temperature field 



of liquid helium. 504. 



