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- The Spectator, 4 February 1899
- Year: 1899
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- The Spectator, 10 June 1899
- Year: 1899
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- The Spectator, 7 May 1898
- Year: 1898
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- The Spectator, 26 March 1898
- Year: 1898
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- The Spectator, 27 May 1899
- Year: 1899
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- The Spectator, 4 February 1899
- Year: 1899
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- Scientific American (Supplement), 5 October 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- Scientific American (Supplement), 12 October 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- Scientific American (Supplement), 15 June 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- The Spectator, 10 June 1899
- Year: 1899
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 7 May 1898
- Year: 1898
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 26 March 1898
- Year: 1898
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 27 May 1899
- Year: 1899
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- Scientific American (Supplement), 9 March 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- Scientific American (Supplement), 8 June 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York