1.
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London : Sampson Low, Son, and Marston, 1868.
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2.
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London : Macmillan and Company, 1866.
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3.
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Boston : Houghton, Mifflin and Company, MDCCCV.
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4.
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Edinburgh : W.P. Nimmo, 1870.
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5.
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Boston : Houghton, Mifflin and Company, MDCCCXCI.
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6.
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London ; New York : Macmillan and Company, 1901.
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7.
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London : Chatto & Windus, 1892.
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8.
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London : W. Heinemann, 1905.
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9.
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Cambridge ; London : Macmillan and Company, 1861.
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10.
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Boston : L.C. Page & Conpany, publishers, [1904] ©1904
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