CAOUNEE BEN TBs XXI 
RADIUM (The radiation of) at the temperature of liquid hydrogen. 1430. 
RAINFALL (The correlation between atmospheric pressure and) in the; East-Indian 
Archipelago, in connection with the 3,5 yearly barometric period. 454. 
RATE OF GROWTH (On the connection between phyllotaxis and the distribution of the) 
in the stem. 1015. 
REACTION (Influence of the) upon the action of ptyalin. 799. 
REACTION of FRIEDEL and Crarrs (Dynamic researches concerning the). 1069. 
REACTION VELOCITY (On the) of micro-organisms. 629. 
RECEPTIVE NERVE (Nerve regeneration after the joining of a motor nerve to a). 1281. 
REFRACTION (Electric double) in some artificial clouds and vapours. L78. 
REFRACTIVE INDICES (Determinations of) of gases under high pressures. 2nd, Com- 
munication. 925. 
REINDERS (w.) and S. pe Lance. The system Tin-lodine. 474. 
— and D. Levy Jr. The distribution of dyestutis between two solvents. Contri- 
bution to the theory of dyeing. 482. 
RELATIONS (Some remarkable) either accurate or approximative for different substan- 
ces. 903. 
RESISTANCE (On the Harr-effect and the) in the magnetic field at low temperatures. 
E30 IE 319. TIL 649. -EV,-659. V.'664. VE 981. VIT 988. VL 999, 
RESPIRATORY EXCHANGE (Influence of the seasons on) during rest and during 
muscular exercise. 790. 
RHYOLITE (On) of the Pelapis-islands. 347. 
RINGER (W. E.) and H. van Trrer, Influence of the reaction upon the action of 
ptyalin. 799. 
RINGGIT (East-Java) (Leucite-rocks of the) and their contact-metamorphosis. 1238. 
“ROBBERTS (DAVID E.). The effect of temperature and transverse magnetisation 
on the resistance of graphite. 143. 
ROMBURGH (P. VAN) presents a paper of Mr. J. W. LE Heux: “On some internal 
unsaturated ethers”. 19. 
— presents a paper of Prof. Exnst Cowen: “The equilibrium Tetragonal 
Tin = Rhombie Tin”. 839, 
— Hexatriene 1, 3, 5. 1184. 
— presents a paper of Dr. H. R. Kruyr: “The dynamic allotropy of sulphur”. 
5th. communication. 1228. 
— presents a paper of Dr. H. R. Krurr: “The influence of surface-active sub- 
stances on the stability of suspensoids”’. 1344. 
ROSENBERG (BE. W.). Contributions to the knowledge of the development of the 
vertebral column of man. 80. 
ROTATION (Measurements on the ultraviolet magnetic) in gases. 773. 
RUBIDIUM (The radio-activity of) and potassium compounds. II. 22. 
— (Action of hydrogenious boric acid, copper, manganese, zinc and) on the 
metabolism of Aspergillus niger. 753. € 
RUTTEN (L.). Orbitoids of Sumba. 461. 
SALOMONSON (J. K. A. WERTHEIM). On a shortening-refiex. 1092. 
* 
