The Open Court

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Haeckel's Birthday.
Paul Carus

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The Boundaries of Natural Science (With portraits).
Ernst Haeckel

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Fifty Years in the Service of the Evolution Theory (With illustrations).
W. Breitenbach

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Religion in a Monistic Interpretation.
Paul Carus

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Wilhelm Ostwald, President of the German Monistic League (With portrait.)
Ernst Haeckel

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Conservatism and Morality.
T. T. Blaise

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Articles by Haeckel and About Him.

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Currents of Thought in the Orient.
B. K. Roy

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Book Reviews and Notes.

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Time (Poem).
Paul Carus