-
-
-
- The Spectator, 23 February 1867
- Year: 1867
-
- The Spectator, 1 December 1877
- Year: 1877
-
- The Spectator, 8 December 1877
- Year: 1877
-
- The Spectator, 2 March 1867
- Year: 1867
-
- The Spectator, 9 February 1867
- Year: 1867
-
- The Spectator, 18 August 1877
- Year: 1877
-
- The Spectator, 30 March 1878
- Year: 1878
-
- The Spectator, 8 September 1877
- Year: 1877
-
- The Spectator, 29 December 1877
- Year: 1877
-
- The Spectator, 1 June 1878
- Year: 1878
-
- The Spectator, 9 March 1878
- Year: 1878
-
- The Spectator, 10 February 1866
- Year: 1866
-
- The Spectator, 6 July 1878
- Year: 1878
-
- The Spectator, 22 June 1878
- Year: 1878
-
- The Spectator, 27 April 1878
- Year: 1878
-
- The Spectator, 23 March 1878
- Year: 1878
-
- The Spectator, 25 May 1878
- Year: 1878
-
- The Spectator, 15 June 1878
- Year: 1878
-
- Scientific American (Supplement), 6 August 1898
- Year: 1898
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 5 November 1898
- Year: 1898
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 23 February 1867
- Year: 1867
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 1 December 1877
- Year: 1877
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 8 December 1877
- Year: 1877
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 2 March 1867
- Year: 1867
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 9 February 1867
- Year: 1867
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 18 August 1877
- Year: 1877
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 30 March 1878
- Year: 1878
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 8 September 1877
- Year: 1877
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 29 December 1877
- Year: 1877
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 1 June 1878
- Year: 1878
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 9 March 1878
- Year: 1878
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 10 February 1866
- Year: 1866
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 6 July 1878
- Year: 1878
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 22 June 1878
- Year: 1878
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 27 April 1878
- Year: 1878
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 23 March 1878
- Year: 1878
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 25 May 1878
- Year: 1878
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 15 June 1878
- Year: 1878
- Publisher: The Spectator
- Language: English
- Place of Publication: London