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- The Spectator, 4 December 1897
- Year: 1897
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- The Spectator, 26 June 1897
- Year: 1897
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- The Spectator, 14 May 1898
- Year: 1898
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- The Spectator, 19 March 1898
- Year: 1898
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- The Spectator, 12 February 1898
- Year: 1898
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- Scientific American (Supplement), 7 December 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- Scientific American (Supplement), 23 November 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- Scientific American (Supplement), 14 December 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- The Spectator, 4 December 1897
- Year: 1897
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 26 June 1897
- Year: 1897
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 14 May 1898
- Year: 1898
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 19 March 1898
- Year: 1898
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- Scientific American (Supplement), 19 January 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- The Spectator, 12 February 1898
- Year: 1898
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- Scientific American (Supplement), 16 March 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York