11 Debate on Religion. John H. Holmes and George Bowne.
39 Did Jesus Ever Live?
130 Controversy on Christianity. Ingersoll and Gladstone.
43 Marriage and Divorce. Horace Greeley and Robert Owen.
208 Debate on Birth Control. Mrs. Sanger and Winter Russell.
121 Rome or Reason. Ingersoll and Manning.
122 Spiritualism. Conan Doyle and McCabe.
171 Has Life Meaning?
206 Capitalism vs. Socialism. Seligman and Nearing.
13 Is Free Will a Fact or a Fallacy?
234 McNeal-Sinclair Debate on Socialism.