KONINKLIJKE AKADEMIE VAN WETENSOHAITEN 

 TE AMSTERDAM. 



PROCEEDINGS OF TUK MEETING 

 of Saturday May 30, 1903. 



(Translated fioin: VeishiL; van de gewone vergadering der Wis- on Nalinukiindigo 

 Aldeeling van Zaterdag 3U Mei lOOiJ, Dl. Xll). 



OOITTEÏsTTS. 



J. W. Dito: "The actiitn uf iihusi)liüras uii hydiiizini;". (Coinimiiiifutccl by I'iuf. C. A. Lobrv 

 DE Bui vn), p. 1. 



J. W. CoMMi-.i.iN and Eunst Coiikn: "The eleetroinutive fuice uf the DAMri.i.-i'cllb". Coiii- 

 iniiniciited by l'iof. W. II. .Jri.ns), \h 4. 



Jan 1)K Vi;iks: "(Ju complexes ut' itiys in lehitiun ty a rational skew eiavc", p. 12. 



W. A. Vkiïslivs: "The sinyuhirities of the local curve (if a curve in space'. (Comnuinica'.ed 

 by Prof. P. II. S« HOI TK,), p. 17. 



P. Zek.man and .J. Gekst : "On the double refraction in a magnetic field near the coni|)onent5 

 of a i[u:idruplct", p. I'J. 



J. .J. VAN Laak: "Tlie course of the melting-point-line of alloys (.3.d communication). (^Com- 

 municated by Prof. II. W. Bakiuis Uoozkhoom), p. 2i. 



M. C. DeivUUYzen and P. Veumaat: "On the epithelium of the surface of the stomach". 

 (Communicated by Prof. C. A. Peiveluakixu), p. 30. 



E. IIekma: "On the liberation of trypsin from try))sin-zymogen". (Conimunicnted by Prof. 



H. J. HAMBll«iEU), p. 34. 



A. Pa>'>ei\.oek : ''Stmie remarks on the reversibility of molecular motions". (Communicated 

 by Prof. H. A. Loi;entz), p. 42. 



C. A. J. A. OruE.MAN.s and C. J. Koning: "On a Sclerotinia liitherto unknown and injin'ious 

 to tiie cultivation of Tobacco (Sclerotinia Xicotianae Oi d. ct Ivomnc,;, p. -18 (with one filalc). 



J. E. Veuschai-ielt: "Contributions to the knowled^'c of van dkii WAAl.^s' i-surface. VI!. 

 (part 3), The equation;; of slate and the i-surface in the immediate nci^^libuurhoud of the critical 

 state for binary mixtures with a small proportion of one uf the components". (Communicated 

 by Prof. II. Kamekungii Onnes), p. .")'.». 



Til e follow ill u' |)n|K'i-:s were read: 



Chemistry. — '"'^r/w urtion of p//(>sii/ii)r/is on /ti/(/r(t:i//c/^ Ry 

 Mr. .1. W. DiTO. (Comnmiiicaled hy TroC. ('. A. Loi'.b'V dk ])RUYN). 

 (Clominunieated in tlie meeting ut' April lli, 11J03.) 



Tlie last iiuiiiWer of llie IJerielile ') contains a research on plios- 

 plionis In \l. ScHKNCK. Several of his observations <[nite corroboralo 

 those which have been announced s(une time a.^o^) and which were made 



1) Ber. 36. DTli. 



-) Recueil 18. 2Ü7. (ISti'J). 



1 

 Proceedings Royal Acad. Amsterdam. Vol. VI. 



