KONINKLIJKE AKADEMIE VAN WETENSCHAPrEN 

 TE AMSTERDAM. 



PROCEEDINGS OF THE MEETING 

 of Saturday October 28, 1911. 



(Translated from: Verslag van de gewone vergadering der Wis- en Natuurkundige 

 Afdeeling van Zaterdag 28 October 1911, Dl. XX). 



COlsTTEDSTTS. 



L. E. J. Brodwer: "Continuous one-one transformations of suifuces in themselves". (4tli Cuin- 

 municiition). (Communicated by Prof. D. J. Kortkwkg), p. 300. 



C. A. Pekelharing: "The excretion of creatinin in man under the infiuenee of muscnhir 

 tonus", after experiments by Mr. J. Haukink, p. 310. 



H. J. Hamburger and J. de Ha.4N : "The effect of substiin;-es which dissolve in fat on the 

 mobility of Phagocytes and other cells", p. 314. 



P. VAN KoMBCRGH: "The essential oil of Litsca odorifera Val. (Trawas oil)". ( Prelim iiuiry 

 communication), p. 325. 



P. C. VAN DER Wolk; "Investigation of the transmission of lijiht stimuli in the seedlings of 

 Avena". (Communicated by Prof. F. A. F. C. Went), p. 327. 



F. M. Jaeger : "The photochemical transformations of Ferri-tiichloro-acetato solutions". (Com- 

 municated by Prof. P. VAN RombürghJ, p. 3-12. 



F. M. Jaegkr: "A remarkable case of isopolymorphism with salts of the alkali metals". (Com- 

 municated by Prof. P. VAN Romburgh), p. 356. 



Th. Weevers: "The action of the respiratory enzymes of Sauromatum veiiosum Schott". (Com- 

 municated by Prof. F. A. F. C, Went), p 370. 



N. H. Savellengrebel : "Pleistojihora gigantea Thclohan, a paiasite of CrenilabMis mclups". 

 (^Communicated by Prof. Max Weber), p. 377. 



H. A. Brouwer: "On peculiar sieve structures in igneous rocks, rich in alcalies". (Coinmiiui- 

 catcd by Prof. G. A. F. Molengraaff), p. 383. 



.1. Droste: "An extension of the integral theorem of Folrier". (Communicated by Prof. 

 J. C. Kluyver), p. 387. 



M. J. van Uven: "Homogeneous linear difterential-equation of order two with given relation 

 between two particular integrals". (Communicated by Prof. W. Kapteyn), j). 3!)I. 



M. Koperberg: "Notes on the Sopoetan Mountains in the Minahassa". (Second part). (Com- 

 municated by Prof. C. E. A. Wichmann), p. 399. 



J. P. KuENEN : "Some remarks on the direction of the binodal curves in the v — z-diagram in 

 a three-phase-equilibrium", j). 420. 



P. H. Schoute: "The characteristic numbers of the prismotope", p. 424. 



J. J. van Laar: "The variability of the quantity b in v.vn der Waals' e(iuatiou of state, also 

 in connection with the critical quantities". II. (Communicated by Prof. H. A. Lorentz), 

 p. 428. 



P. J. H. VAN Ginneken: "Sugar solutions and lime". (Communicateil by Prof. P. van 

 Romburgh), p. 442. 



A. Smits and H. L. de Leeuw : "On the system sulphur". (Communicated by Prof. A. F. 

 Holleman), p. 461. 



21 



Proceedings Royal Acad. Amsterdam. Vol. XiV. 



