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- The Spectator, 20 May 1893
- Year: 1893
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-
-
- The Spectator, 9 December 1893
- Year: 1893
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- The Spectator, 17 December 1892
- Year: 1892
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- The Spectator, 22 October 1892
- Year: 1892
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- The Spectator, 11 November 1893
- Year: 1893
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- The Spectator, 7 January 1893
- Year: 1893
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- The Spectator, 7 April 1866
- Year: 1866
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- The Spectator, 23 December 1893
- Year: 1893
-
- The Spectator, 20 May 1893
- Year: 1893
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- Scientific American (Supplement), 4 July 1891
- Year: 1891
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- Scientific American (Supplement), 11 July 1891
- Year: 1891
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- The Spectator, 9 December 1893
- Year: 1893
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 17 December 1892
- Year: 1892
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 22 October 1892
- Year: 1892
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 11 November 1893
- Year: 1893
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 7 January 1893
- Year: 1893
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 7 April 1866
- Year: 1866
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 23 December 1893
- Year: 1893
- Publisher: The Spectator
- Language: English
- Place of Publication: London