KONINKLIJKE AKADEMIE VAN WETENSCHAPPEN 
TE AMSTERDAM. 
Bio oe te DTN io 
VOLUME XXII 
N°, 1. 
President: Prof. H. A. LORENTZ. 
Secretary: Prof. P. ZEEMAN. 
(Translated from: “Verslag van de gewone vergaderingen der Wis- en 
Natuurkundige Afdeeling," Vol. XXVII). 
CONTENTS. 
H. B. A. BOCKWINKEL: “On MAC LAURIN’s Theorem in the Functional Calculus” (Communicated 
by Prof. L. E. J. BROUWER), p. 2. 
H. B. A. BOCKWINKEL: “Observations on the expansion of a function in a series of factorials”. III. 
(Communicated by Prof. H. A. LORENTZ), p. 6. 
H. B. A. BOCKWINKEL: “On the necessary and sufficient conditions for the expansion of a function 
in a Binomial Series”. (Communicated by Prof. H. A. LORENTZ), p. 18. 
H. P. BARENDRECHT: “Urease and the radiation-theory of enzyme action”, III. (Communicated by 
Prof, J. BOESEKEN), p. 29. 
FRED. SCHUH: “A general definition of limit with application to limit-theorems”. (Communicated 
by Prof. J. CARDINAAL), p. 46. 
FRED. SCHUH: “A general definition of uniform convergence with application to the commutativity 
of limits”. (Communicated by Prof. J. CARDINAAL), p. 48. 
H. J. PRINS: “On the Condensation of Formaldehyde with some Unsaturated Compounds”. (Commu- 
nicated by Prof. J. BOESEKEN), p. 51. 
H. L. VAN DE SANDE BAKHUYZEN: “Photo-growth reaction and disposition to light in Avena sativa”. 
(Communicated by Prof. F. A. F. C. WENT), p. 57. 
P. H. VAN CITTERT: “The Structure of the Sun's Radiation”. (Communicated by Prof. W. H. JULIUS), 
P.tio. 
A. SMITS, G. L. C. LA BASTIDE, and J. A. VAN DEN ANDEL: “The Phenomenon after Anodic Polari- 
sation”. I. (Communicated by Prof. P. ZEEMAN), p. 82. 
H. GROOT: “On the Effective Temperature of the Sun.” Some remarks in connection with an article 
by DEFANT: “Diffusion und Absorption in der Sonnenatmosphäre”, (Communicated by Prof W. H. 
JULIUS), p. 89. 
Proceedings Royal Acad. Amsterdam. Vol. XXII. 
