KONINKLIJKE AKADEMÏE VAN AVETENSCHAPPEN 

 TE AMSTERDAM. 



PROCEEDINGS OF THE lAIEETING 

 of Saturday May 26, 1904. 



(Translated from: Vcri>lag van de gewone vergadering der Wis- en Natuurkundige 

 Afdeeling van Zaterdag 26 Mei 1904, Dl. XII). 



CO^vTTEliTTS. 



H. P. Barf.xdkkciit : "Enzyme- actiuii." (Comniunicated by Prul'. J. M van Bkmmei.f.n), p. 2 



J. P. VAX DEK Stok: "On a twenty- six-day period in daily means uf the bai-umetrio height', p. 18. 



J. W. Laxgelaax : "Ou the furm of the Tnink-niyutome". (Communicated by Prof. T. Place), 

 p. 34. (With one plate). 



Era. DrBOiS: "On the direction and the starting point of the diluvial ice motion over the 

 Netherlands." (Communicated by Prof. J. M. vax Bemmklen), p. 40. 



Fred. Schdh : "On an expression for the class of an algebraic plane curve with higher 

 singularities." (Communicated by Prof. D. J. Korteweg), p. 42. 



II. E. DE Bruyn : "Some considerations on the conclusions arrived at in the communication 

 made by Prof. Euo. Dtbols in the meeting of June 27, 1003, entitled: Some facts leading to 

 trace out the motion and the origin of the underground water of our seaprovinces", p. 4;'). 



Ero. DvBOis: "On the origin of the fresh-water in the sub.soil of a few shallow polders." 

 (Communicated by Prof. H. W. Bakhuis Koozeboom). p. 53. 



C. A. LoBRY DE BRUYxand S. TvMSTKA Bz.: "The meclumism of the salicylacid synthese", p. G3. 



J. J. Blanksma: "On the intramolecular oxydatiun of a Sll-group bound to benzol by an 

 orthostanding NO^.-group." (Communicated by Prof. C. A. Lobry de BuLYNy, p. 63. 



J. M. M. Dormaar: "The inversion of carvon and eucarvon in carvacrol and its velocity." 

 (Communicated by Prof. C. A. Lobry de Bhuyn), p. 63, 



Tlie tblluwiiig papers were read : 

 Proceedings Royal Acad. Amsterdam. Vol. Vil. 



