-
- The Spectator, 8 December 1900
- Year: 1900
-
- The Spectator, 2 October 1869
- Year: 1869
-
- The Spectator, 29 May 1869
- Year: 1869
-
- The Spectator, 3 July 1869
- Year: 1869
-
- The Spectator, 21 August 1869
- Year: 1869
-
- The Spectator, 17 July 1869
- Year: 1869
-
- The Spectator, 22 May 1869
- Year: 1869
-
- The Spectator, 3 November 1900
- Year: 1900
-
- The Spectator, 29 January 1870
- Year: 1870
-
- The Spectator, 1 January 1870
- Year: 1870
-
- The Spectator, 9 April 1870
- Year: 1870
-
- The Spectator, 5 February 1870
- Year: 1870
-
- The Spectator, 14 January 1871
- Year: 1871
-
- The Spectator, 27 November 1869
- Year: 1869
-
- The Spectator, 16 June 1866
- Year: 1866
-
- The Spectator, 1 October 1870
- Year: 1870
-
-
- The Spectator, 30 June 1900
- Year: 1900
-
- The Spectator, 5 March 1870
- Year: 1870
-
- The Spectator, 15 April 1871
- Year: 1871
-
- The Spectator, 8 December 1900
- Year: 1900
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 2 October 1869
- Year: 1869
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 29 May 1869
- Year: 1869
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 3 July 1869
- Year: 1869
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 21 August 1869
- Year: 1869
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 17 July 1869
- Year: 1869
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 22 May 1869
- Year: 1869
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 3 November 1900
- Year: 1900
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 29 January 1870
- Year: 1870
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 1 January 1870
- Year: 1870
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 9 April 1870
- Year: 1870
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 5 February 1870
- Year: 1870
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 14 January 1871
- Year: 1871
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 27 November 1869
- Year: 1869
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 16 June 1866
- Year: 1866
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 1 October 1870
- Year: 1870
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 11 April 1896
- Year: 1896
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 30 June 1900
- Year: 1900
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 5 March 1870
- Year: 1870
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 15 April 1871
- Year: 1871
- Publisher: The Spectator
- Language: English
- Place of Publication: London