-
- The Spectator, 23 May 1874
- Year: 1874
-
- The Spectator, 8 November 1873
- Year: 1873
-
- The Spectator, 29 August 1874
- Year: 1874
-
- The Spectator, 13 October 1866
- Year: 1866
-
- The Spectator, 6 October 1866
- Year: 1866
-
-
- The Spectator, 1 August 1874
- Year: 1874
-
- The Spectator, 16 August 1873
- Year: 1873
-
- The Spectator, 15 September 1866
- Year: 1866
-
-
-
-
- The Spectator, 4 October 1873
- Year: 1873
-
- The Spectator, 11 October 1873
- Year: 1873
-
-
-
-
-
-
-
- The Spectator, 23 May 1874
- Year: 1874
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 8 November 1873
- Year: 1873
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 29 August 1874
- Year: 1874
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 13 October 1866
- Year: 1866
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 6 October 1866
- Year: 1866
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 14 August 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 1 August 1874
- Year: 1874
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 16 August 1873
- Year: 1873
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 15 September 1866
- Year: 1866
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 6 March 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 19 June 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 17 October 1896
- Year: 1896
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 4 October 1873
- Year: 1873
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 11 October 1873
- Year: 1873
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 7 November 1896
- Year: 1896
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 29 July 1882
- Year: 1882
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 30 January 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 2 January 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 29 May 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 24 April 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York