1.
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London : Freethought Pub. Co., [1877?] (A. Besant and C. Bradlaugh)
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2.
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3.
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London : Freethought Pub. Co., [1879]
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4.
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London : Freethought Pub. Co., [1877?] (C. Bradlaugh & A. Besant)
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5.
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London : Freethought Pub. Co., [1878?]
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6.
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New York : Truth Seeker Company, [1890?]
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