KONINKLIJKE AKADEUE VAN WETENSCHAPPEN 
XE AMSTEBDAM. 
PROCEEDINGS OF THE MEETING 
of Saturday May 29, 1909. 
(Translated from: Verslag van de gewone vergadering der Wis- en Natuurkundige 
Afdeeling van Zaterdag 29 Mei 1909, Dl. XVIII). 
J. P. 
CO^TE2JTS. 
* der Stok: “On the determination of tidal constants from nWw.G , , 
with horizontal pendulums", p. 2. observations performed 
J. Cardinaal: “The constructive determination of the velocities of a spacial system” n 12 
p. ™ Rombdroh: “Javanese Basilican, oil and tnethplchavicol”, p. ,5 ' 
p. VAN Romburgh: “The essential nil F 
S L VAN . i he frmts of Monnda citrifolia L.” p. 17. 
j j * T On pentaspheric geometry”. (Communicated by Prof. P. H. Schodte), p . 19. 
R. A "Weebman- «n the SOUd l 8tate ” IL (Communica ted by Prof. H. A. Lobbntz), p! 26. 
A.^ Doi), T* * ^ aldeh7deS ^ iDd0le " HL *** V Dr. W. 
piscatorins^reo* PmmnrI V J*°“ * he motot faci “ lis ‘ a,,d abdncens-nncleas of Lopbins 
P J J B ' ( a "‘' by Prof - L B ««). P- «. (With one plate). 
' ~ —*— 
■ ;Lr - b? <*— * ***w. 
M "“: C - J ; P *“«A*™»: “Investigations on the relation between the presentation r „ 
tn ™ty of stimulus in geotropic curvatures”. (Communicated b r Prof. P. A. F. C.w2). 
*■ 1 : tT ™'- p - 7o - 
On fen-formations in tl, v i Relating the Communication of Prof. C. E. A. Wichmann: 
Haunt and J^Tc^tud “ 
P “.i— H °™ “°” P -P-™ a, veiy low 
Proceedings Royal Acad. Amsterdam. Vol. XII. 
