Field of study: Chemistry, Scheikunde, Wiskunde

• Contribution to the theory of dyeing (first communication)
  KNAW, Proceedings, 20 I, 1918, Amsterdam, 1918, pp. 636-641
  
  
• Current potentials of electrolyte solutions
  KNAW, Proceedings, 19 II, 1917, Amsterdam, 1917, pp. 1021-1028
  
  
• Photo-electric phenomena with Anitmony sulphide (Antimonite)
  KNAW, Proceedings, 14 II, 1911-1912, Amsterdam, 1912, pp. 740-743
  
  
• Pseudoternary systems of acid anhydrides and water I. Phthalic anhydride
  KNAW, Proceedings, 16 II, 1913-1914, Amsterdam, 1914, pp. 712-718
  
  
• The connection between the limit value and the concentration of arsenic trisulphide sols
  KNAW, Proceedings, 17 III, 1914-1915, Amsterdam, 1915, pp. 1158-1163
  
  
• The Doublerefractive Sol of Vanadium Pentoxide
  KNAW, Proceedings, 18 II, 1916, Amsterdam, 1916, pp. 1625-1631
  
  
• The dynamic Allotropy of sulphur
  KNAW, Proceedings, 15 II, 1912-1913, Amsterdam, 1913, pp. 1228-1230
  
  
• The equilibrium solid-liquid-gas in binary system which present mixed crystals. (2nd communication)
  KNAW, Proceedings, 13 I, 1910, Amsterdam, 1910, pp. 206-210
  
  
• The equilibrium solid-liquid-gas in binary systems of mixed crystals
  KNAW, Proceedings, 12, 1909-1910, Amsterdam, 1910, pp. 537-545
  
  
• The equilibrium solid-liquid-gas in binary systems with present mixed crystals.(third communication)
  KNAW, Proceedings, 19 I, 1917, Amsterdam, 1917, pp. 439-447
  
  
• The equilibrium solid-liquids gas in binary systems which present mixed cyrstals. (fourth communication)
  KNAW, Proceedings, 19 I, 1917, Amsterdam, 1917, pp. 555-564
  
  
• The influence of surface active substances on the stability of suspensoids
  KNAW, Proceedings, 15 II, 1912-1913, Amsterdam, 1913, pp. 1344-1349