Date:     25/08/1827  
  
      From:     Wiardus Hora Siccama [1791-1867, petit-neveu du ministre Falck]  
  
      To:     A. Quetelet  
   
  
      
    
      Date:     31/08/1827  
  
      From:     A. Quetelet  
  
      To:       
   
  
      
    
      Date:     31/08/1827  
  
      From:     Louis de Wellens van ten Meulenberg, Burgemeester van Brussel  
  
      To:     Pierre Servais Van Gobbelschroy, Minister van binnenlandse zaken  
   
  
      
    
      Date:     04/09/1827  
  
      From:     Guillaume Jean Antoine Viron, pour le Gouverneur ad interim du Brabant méridional  
  
      To:     A. Quetelet  
   
  
      
    
      Date:     15/09/1827  
  
      From:     Daniel Jacob van Ewyck, secretaris van Minister Falck  
  
      To:     A. Quetelet  
   
  
      
    
      Date:     18/09/1827  
  
      From:     D.J Van Ewijck, Administrateur voor de Kunsten, het Onderwijs en de Wetenschappen  
  
      To:     Louis de Wellens van ten Meulenberg, Burgemeester van Brussel  
   
  
      
    
      Date:     24/09/1827  
  
      From:     Louis de Wellens  
  
      To:     (baron) Joseph van Volden de Lombeke  
   
  
      
    
      Date:     24/09/1827  
  
      From:     D. J. Van Ewyck  
  
      To:     A. Quetelet  
   
  
      
    
      Date:     24/09/1827  
  
      From:     Louis de Wellens van ten Meulenberg, Burgemeester van Brussel  
  
      To:     Joseph-Marie-Hyacinthe-Ghislain van Volden de Lombeke, Baron  
   
  
      
    
      Date:     28/09/1827  
  
      From:     Daniel Jacob van Ewyck, secretaris van Minister Falck  
  
      To:     A. Quetelet