-
- The Spectator, 16 December 1876
- Year: 1876
-
- The Spectator, 29 December 1866
- Year: 1866
-
- The Spectator, 28 October 1876
- Year: 1876
-
- The Spectator, 30 September 1876
- Year: 1876
-
- The Spectator, 17 June 1876
- Year: 1876
-
- The Spectator, 25 March 1876
- Year: 1876
-
- The Spectator, 2 December 1876
- Year: 1876
-
- The Spectator, 14 October 1876
- Year: 1876
-
- The Spectator, 23 September 1876
- Year: 1876
-
- The Spectator, 9 September 1876
- Year: 1876
-
- The Spectator, 29 September 1877
- Year: 1877
-
- The Spectator, 21 April 1877
- Year: 1877
-
- The Spectator, 24 February 1877
- Year: 1877
-
- The Spectator, 24 March 1877
- Year: 1877
-
- The Spectator, 3 November 1877
- Year: 1877
-
- The Spectator, 16 March 1878
- Year: 1878
-
- The Spectator, 2 June 1877
- Year: 1877
-
- The Spectator, 20 October 1877
- Year: 1877
-
-
- The Spectator, 19 January 1878
- Year: 1878
-
- The Spectator, 16 December 1876
- Year: 1876
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 29 December 1866
- Year: 1866
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 28 October 1876
- Year: 1876
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 30 September 1876
- Year: 1876
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 17 June 1876
- Year: 1876
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 25 March 1876
- Year: 1876
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 2 December 1876
- Year: 1876
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 14 October 1876
- Year: 1876
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 23 September 1876
- Year: 1876
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 9 September 1876
- Year: 1876
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 29 September 1877
- Year: 1877
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 21 April 1877
- Year: 1877
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 24 February 1877
- Year: 1877
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 24 March 1877
- Year: 1877
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 3 November 1877
- Year: 1877
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 16 March 1878
- Year: 1878
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 2 June 1877
- Year: 1877
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 20 October 1877
- Year: 1877
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 4 June 1898
- Year: 1898
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 19 January 1878
- Year: 1878
- Publisher: The Spectator
- Language: English
- Place of Publication: London