-
- The Spectator, 7 June 1890
- Year: 1890
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- The Spectator, 1 February 1890
- Year: 1890
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- The Spectator, 14 September 1889
- Year: 1889
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- The Spectator, 16 May 1868
- Year: 1868
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- The Spectator, 3 November 1888
- Year: 1888
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- The Spectator, 22 December 1888
- Year: 1888
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- The Spectator, 10 November 1888
- Year: 1888
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- The Spectator, 1 June 1889
- Year: 1889
-
- The Spectator, 7 June 1890
- Year: 1890
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 1 February 1890
- Year: 1890
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 14 September 1889
- Year: 1889
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 16 May 1868
- Year: 1868
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- Scientific American (Supplement), 15 November 1890
- Year: 1890
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- Scientific American (Supplement), 1 November 1890
- Year: 1890
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- The Spectator, 3 November 1888
- Year: 1888
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 22 December 1888
- Year: 1888
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 10 November 1888
- Year: 1888
- Publisher: The Spectator
- Language: English
- Place of Publication: London
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- The Spectator, 1 June 1889
- Year: 1889
- Publisher: The Spectator
- Language: English
- Place of Publication: London