XVI CONTENTS 



Physiology. H. Zwaardemaker: "On the behaviour of the Uranium- heart towards 

 electric stimulation, as investigated by Dr. M. UEN IJoer". 189. 



— I. K. A. Wkrtheim Salomonson: "Photography of the fundus of the human 

 eye". 326. 



— S. DE Boee: "On the transmission of stimula through the ventricle of frogs' 

 hearts". 404. 



— S. DE Boer: "Are contractility and conductivity two separate properties of the 

 skeleton-muscles and the heart?" SS-t. 



— J. Temminck Groll : "The intluence of neutral salts on the action of 

 Urease". 559. 



— A. DE Kleyx and W. Storm van Leeuwen.- "Ou the origin of caloric 

 Nystagmus". f)22. 



— W. Storm van Leeuwen and C. de Lind van Wijngaarden: "On the eti'ect 

 of Lobelin on the rise of bloodpressure by Nicotin". 630. 



— H. J. Hamburger and R. Brinkman: "Experimental researches on the permea- 

 bility of the kidneys to glucose". BBS. 



— S. DE BoER; "On the ventricle-electrogram of the frogs' heart". 696. 



— H. Zwaardemaker: "Contribution regarding the shifting of lladioactive Equilibria 

 under the intluence of fluorescein". 768. 



— J. VV. LE Heux: "On the nature of the constituent of Intestine-extracts, which 

 exerts a stimulating influence upon the Gastro-Intestinal movements". 805. 



— H. J. Hamburger and E. Brouwer: "On the ett'ect of H2O2 on the peristalsis 

 of the isolated intestine". 861. 



— P. NiEUWENnuYSE : "A contribution to the pathological histology of striated 

 muscle- tissue". 883. 



— J. J. L. DE Neve: "Behaviour of Megakaryocytes in the spleen of the young 

 kitten". 971. 



— H. VAN Trigt: "A contribution to the physiology of the freshwater sponges 

 (Spongillidae)". 1061. 



— Miss L. Kaiser: "On the refractory stage of the frog's gastrocnemius". 1214. 



— V. Willem: "On the respiratory movements of the frog". 1234. 



— H. Zwaardemaker and H. Zeehuisen: "On the electric nebulae of antipyretica". 

 1-272. 



POiiYMERS (On) of methylchavicol. 64. 



POLYTOPEs of the Ceoo-family (A relation between the). 966. 



PRECESSION-CONSTANT (Investigation concerning the) and the systematic proper motions 



of the stars. 956. 

 PRESSURE of Mercury (On the critical temperature and) and Phosphorus, 138. 

 PROPER MOTIONS (Investigation concerning the precession-constant and the systematic) 



of the stars. 956* 

 Psychology (Experimental). F. Roels: "Intercomparison of some results obtained in the 



investigation of memory by the natural and the experimental Learning Method". 477. 

 pyramidal cells (On the variability of the number of giant) in the Heschl convolution 



in man. 788. 

 QUANTA (The Spectrum of a rotating molecule according to the theory of). 170. 



