KONINKLIJKE AKADEMIE VAN WETENSCHAPPEN 



TE AMSTERDAM. 



PROCEEDINGS 



VOLUME XXV 

 NOS. 7 and 8. 



President: Prof. F. A. F. C. WENT. 

 Secretary : Prof. L. Bolk. 



(Tiansiated from : "Verslag van de gewone vergaderingen der Wis- en 

 Natuurkundige Afdeeling." Vol. XXXI). 



CONTENTS. 



EUQ. DUBOIS: "Phylogenetic and Ontogenetic Increase of the Volume of the Brain in Vertebrata", 

 p. 230. 



R. Magnus and A. DE Kleyn: "A further Contribution concerning the function of the Otolithic 

 Apparatus", p. 256. 



L. RUTTEN: "Cuba, The Antilles and the Southern Moluccas', p. 263. (with one plate). 



B. SJOLLEMA and J. E. VAN DER ZANDE: "Changes in Milk due to Sterile Inflammation of the 

 Udder". (Communicated by Prof. C. EYKMAN), p. 275. 



M. W. Beijerinck and L. E. DEN Dooren DE JonG: "On Bacillus polymyxa", p. 279. 



W. VAN DER WOUDE: "On the Light Path in the General Theory of Relativity". (Communicated by 

 Prof. H. A. LORENTZ), p. 288. 



G. Breit: "Calculations of the effective permeability and dielectric constant of a powder". (Com- 

 municated by Prof. H. KAMERLINGH OnNES), p. 293. 



J. J. VAN Laar : "On the Heat of Mixing of Normal and Associating Liquids". (Communicated by 

 Prof. H. A. LORENTZ), p. 309. 



J. Boeke: "On the Regeneration of Sensitive End-corpuscles after section of the nerve", p. 319. 



H. R. Kruyt and C. F. VAN DUIN: "Heterogeneous catalysis and the orientation of adsorbed 

 molecules", p. 324. 



H. A. Brouwer : "Fractures and Faults near the Surface of Moving Geanticlines. II. Abnormal 

 Strikes near the Bending-points of the horizontal projection of the Geanticlinal axis", p. 327. 



P. VAN ROMBURGH and J. H. N. VAN DER BURG: "Cyclic Derivatives of Mannitol", p. 335. 



F. A. H. SCHREINEMAKERS: "In-, mono- and divariant equilibria". XXII, p. 341. 



B. L. VAN DER WAERDEN: "Ueber Determinanten aus Formenkoeffizienten". (Communicated by 

 Prof. L. E. J. BROUWER), p. 354. 



H. J. BACKER: "The dissociation constants of sulphonacetic and i:-sulphonpropionic acids". (Com- 

 municated by Prof. P. VAN Romburgh), p. 359. 



Arie QueridO: "On the progress of the veratrin-poisoning of the striated frog-muscle". (Commu- 

 nicated by Prof. G. VAN Rijnberk), p. 364. 



L. BOLK: "The Problem of Orthognathism", p. 371. 



Erratum, p. 381. 



15 



Proceedings Royal Acad. Amsterdam. Vol. XXV. 



