• Louis Botha contra Generaal Christiaan de Wet 

      Valter, M. P. C. (Amsterdam : C.L. Van Langenhuysen, 1915)
      Dutch pamphlet explaining the difference in attitude towards the war of Louis Botha and Christiaan de Wet.
    • Political and economic blunders 

      Poutsma, H. J. ([Pretoria] : H.J. Poutsma, 1915)
      Review of the policy of the Smuts-Botha government, being a reprint of articles published in the "New Age", since January, 1915 together with some additional matter.