-
- The Spectator, 28 March 1896
- Year: 1896
-
- The Spectator, 9 May 1896
- Year: 1896
-
- The Spectator, 14 November 1896
- Year: 1896
-
- The Spectator, 3 November 1894
- Year: 1894
-
- The Spectator, 23 March 1895
- Year: 1895
-
- The Spectator, 8 June 1895
- Year: 1895
-
-
-
- The Spectator, 7 November 1868
- Year: 1868
-
-
- The Spectator, 28 March 1896
- Year: 1896
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 9 May 1896
- Year: 1896
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 14 November 1896
- Year: 1896
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 3 November 1894
- Year: 1894
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 23 March 1895
- Year: 1895
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 8 June 1895
- Year: 1895
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 11 March 1882
- Year: 1882
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 11 March 1893
- Year: 1893
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 7 November 1868
- Year: 1868
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 13 May 1893
- Year: 1893
- Publisher: Scientific American
- Language: English
- Place of Publication: New York