-
- The Spectator, 28 July 1894
- Year: 1894
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- The Spectator, 12 May 1894
- Year: 1894
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-
-
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- Scientific American (Supplement), 7 May 1892
- Year: 1892
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- The Spectator, 23 June 1894
- Year: 1894
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- The Spectator, 21 July 1894
- Year: 1894
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- The Spectator, 14 April 1894
- Year: 1894
-
- The Spectator, 21 April 1894
- Year: 1894
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- The Spectator, 26 May 1894
- Year: 1894
-
- The Spectator, 17 March 1894
- Year: 1894
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- The Spectator, 11 August 1894
- Year: 1894
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- The Spectator, 16 June 1894
- Year: 1894
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- The Spectator, 28 July 1894
- Year: 1894
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 12 May 1894
- Year: 1894
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 27 February 1892
- Year: 1892
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- Scientific American (Supplement), 16 April 1892
- Year: 1892
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 19 December 1891
- Year: 1891
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 7 May 1892
- Year: 1892
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 23 June 1894
- Year: 1894
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 21 July 1894
- Year: 1894
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 14 April 1894
- Year: 1894
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 21 April 1894
- Year: 1894
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 26 May 1894
- Year: 1894
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 17 March 1894
- Year: 1894
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 11 August 1894
- Year: 1894
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 2 January 1892
- Year: 1892
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- Scientific American (Supplement), 28 November 1891
- Year: 1891
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 16 June 1894
- Year: 1894
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 31 October 1891
- Year: 1891
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- Scientific American (Supplement), 23 April 1892
- Year: 1892
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 7 November 1891
- Year: 1891
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
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- Scientific American (Supplement), 14 January 1882
- Year: 1882
- Publisher: Scientific American
- Language: English
- Place of Publication: New York