-
- The Spectator, 5 July 1873
- Year: 1873
-
- The Spectator, 28 June 1873
- Year: 1873
-
-
-
-
- The Spectator, 14 December 1872
- Year: 1872
-
- The Spectator, 27 September 1873
- Year: 1873
-
-
-
- Scientific American (Supplement), 8 May 1897
- Year: 1897
-
-
-
-
-
- Scientific American (Supplement), 1 May 1897
- Year: 1897
-
-
- The Spectator, 19 July 1873
- Year: 1873
-
- The Spectator, 13 September 1873
- Year: 1873
-
-
-
- The Spectator, 5 July 1873
- Year: 1873
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 28 June 1873
- Year: 1873
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 9 January 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 22 July 1882
- Year: 1882
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 13 March 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 14 December 1872
- Year: 1872
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 27 September 1873
- Year: 1873
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 26 June 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 24 July 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 8 May 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 16 January 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 5 June 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 20 March 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 31 July 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 1 May 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 28 November 1896
- Year: 1896
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- The Spectator, 19 July 1873
- Year: 1873
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- The Spectator, 13 September 1873
- Year: 1873
- Publisher: The Spectator
- Language: English
- Place of Publication: London
-
- Scientific American (Supplement), 27 February 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York
-
- Scientific American (Supplement), 22 May 1897
- Year: 1897
- Publisher: Scientific American
- Language: English
- Place of Publication: New York