-
- The Spectator, 17 September 1870
- Year: 1870
-
- The Spectator, 4 June 1870
- Year: 1870
-
- The Spectator, 8 January 1870
- Year: 1870
-
-
-
-
- The Spectator, 6 August 1870
- Year: 1870
-
- The Spectator, 5 August 1871
- Year: 1871
-
- The Spectator, 15 March 1873
- Year: 1873
-
- The Spectator, 12 October 1872
- Year: 1872
-
- The Spectator, 23 November 1872
- Year: 1872
-
- The Spectator, 4 November 1871
- Year: 1871
-
- The Spectator, 11 January 1873
- Year: 1873
-
- The Spectator, 4 August 1866
- Year: 1866
-
- The Spectator, 21 July 1866
- Year: 1866
-
-
- The Spectator, 21 December 1872
- Year: 1872
-
- The Spectator, 6 July 1872
- Year: 1872
-
- The Spectator, 1 February 1873
- Year: 1873
-
- The Spectator, 31 August 1872
- Year: 1872
-
- The Spectator, 17 September 1870
- Year: 1870
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 4 June 1870
- Year: 1870
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 8 January 1870
- Year: 1870
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 17 June 1882
- Year: 1882
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 25 April 1896
- Year: 1896
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 18 April 1896
- Year: 1896
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 6 August 1870
- Year: 1870
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 5 August 1871
- Year: 1871
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 15 March 1873
- Year: 1873
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 12 October 1872
- Year: 1872
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 23 November 1872
- Year: 1872
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 4 November 1871
- Year: 1871
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 11 January 1873
- Year: 1873
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 4 August 1866
- Year: 1866
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 21 July 1866
- Year: 1866
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 5 September 1896
- Year: 1896
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 21 December 1872
- Year: 1872
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 6 July 1872
- Year: 1872
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 1 February 1873
- Year: 1873
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 31 August 1872
- Year: 1872
- Publisher: The Spectator
- Language: English
- Place of Publication: London