-
- The Spectator, 23 July 1898
- Year: 1898
-
-
- The Spectator, 19 November 1898
- Year: 1898
-
- The Spectator, 8 October 1898
- Year: 1898
-
- The Spectator, 14 January 1899
- Year: 1899
-
- The Spectator, 8 July 1899
- Year: 1899
-
- The Spectator, 6 March 1869
- Year: 1869
-
- The Spectator, 11 June 1898
- Year: 1898
-
-
- The Spectator, 17 September 1898
- Year: 1898
-
-
-
- The Spectator, 16 September 1899
- Year: 1899
-
- The Spectator, 27 August 1898
- Year: 1898
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-
-
-
-
-
-
- The Spectator, 23 July 1898
- Year: 1898
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 3 June 1882
- Year: 1882
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 19 November 1898
- Year: 1898
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 8 October 1898
- Year: 1898
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 14 January 1899
- Year: 1899
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 8 July 1899
- Year: 1899
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 6 March 1869
- Year: 1869
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 11 June 1898
- Year: 1898
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 2 November 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 17 September 1898
- Year: 1898
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 26 October 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 1 June 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 16 September 1899
- Year: 1899
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 27 August 1898
- Year: 1898
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 10 August 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 21 September 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 29 June 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 24 August 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 14 September 1895
- Year: 1895
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 13 May 1882
- Year: 1882
- Publisher: Scientific American
- Language: English
- Place of Publication: New York