KONINKLIJKE AKADEMIE 

 VAN WETENSCHAPPEN 

 -:- TE AMSTERDAM -:- 



S.oi^i^cc^^dt,- 



PROCEEDINGS OF THE 

 SECTION OF SCIENCES 



ERRATA. 



In de Proceedings : 

 Vol. XXI, p. 836, line 3 from the top, read Supplement N'. 42^ 



for Supplement N°. 43a. 



JOHANNES MULLER :— : AMSTERDAM 

 : OCTOBER 1919 : : 



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