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- The Spectator, 21 November 1891
- Year: 1891
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- The Spectator, 7 November 1891
- Year: 1891
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- The Spectator, 9 July 1892
- Year: 1892
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- The Spectator, 21 May 1892
- Year: 1892
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- The Spectator, 5 March 1892
- Year: 1892
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- The Spectator, 25 June 1892
- Year: 1892
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- The Spectator, 13 August 1892
- Year: 1892
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- The Spectator, 16 July 1892
- Year: 1892
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- The Spectator, 20 August 1892
- Year: 1892
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- Scientific American (Supplement), 25 April 1891
- Year: 1891
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- The Spectator, 21 November 1891
- Year: 1891
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 7 November 1891
- Year: 1891
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 9 July 1892
- Year: 1892
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 21 May 1892
- Year: 1892
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 5 March 1892
- Year: 1892
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 25 June 1892
- Year: 1892
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 13 August 1892
- Year: 1892
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 16 July 1892
- Year: 1892
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 20 August 1892
- Year: 1892
- Publisher: The Spectator
- Language: English
- Place of Publication: London