К Марсу


1. Letter, Katharine Johnson to Tesla, April 3, 1896, Tesla Museum, Belgrade, 
Yugoslavia.
2. Letter, Katharine Johnson to Tesla, summer 1896, Tesla Museum, Belgrade, 
Yugoslavia.
3. Letter, Robert U. Johnson to Tesla, January 10, 1896, Columbia University, 
Butler Library.
4. Microfilm letter, Robert U. Johnson to Tesla, October 25, 1895, Library of 
Congress.
5. Letter, Tesla to Robert U. Johnson, March 13, 1896, Butler Library, Columbia 
University.
6. Letter, Katharine Johnson to Tesla, December 26, 1896, Tesla Museum, 
Belgrade.

7.
Electrical Review,
August 11, 1897; see also New York
Sun,
August 4, 1897.

8. Anderson, «Priority».

9.
Electrical Review
, August 11, 1897, p. X. See also New York
Sun,
August 4, 1897.


10.
Electrical Engineer
, London, August 20, 1897, p. 225. From New York
Journal
August 4, 1897, p. 1.


11.
Electrical Review,
August 11, 1897;
Electrical Engineer,
New York, June 23, 1897, p. 713.


12.
Electrical Review,
August 11, 1897.


13.
Electrical Review,
March 29, 1899, p. 197.

14. Ibid.
15. Letter, Katharine Johnson to Tesla, January 12,1896, Tesla Museum, Belgrade.


16. O'Neill,
Genius
, pp. 161-62.


17. A. L. Benson,
The World Today
, Vol. XXI, No. 8 (February 1912).



Глава 12.
Автоматы



1.
Mining & Scientific Press,
January 15, 1898, p. 60.

2. McGovern, «The New Wizard».