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- The Spectator, 29 February 1896
- Year: 1896
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- The Spectator, 25 January 1896
- Year: 1896
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- The Spectator, 2 November 1895
- Year: 1895
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- The Spectator, 1 February 1896
- Year: 1896
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- The Spectator, 17 October 1896
- Year: 1896
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-
- The Spectator, 14 November 1868
- Year: 1868
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- The Spectator, 29 February 1896
- Year: 1896
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- Scientific American (Supplement), 7 April 1894
- Year: 1894
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- The Spectator, 25 January 1896
- Year: 1896
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 2 November 1895
- Year: 1895
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 1 February 1896
- Year: 1896
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 17 October 1896
- Year: 1896
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 17 March 1894
- Year: 1894
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- The Spectator, 14 November 1868
- Year: 1868
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 24 March 1894
- Year: 1894
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- Scientific American (Supplement), 31 March 1894
- Year: 1894
- Publisher: Scientific American
- Language: English
- Place of Publication: New York