BIBLIOGRAPHY 
1 Wonderful Balloon Ascents, or The Conquest of the Skies - 
a history of balloons and balloon voyages, from the French 
of L. Marion, N.Y., Scribner & Co. 1870, p 18 
2 Doty, Robert, Aloft with Balloon & Camera, Image. No. 65 
Vol. 7 No. 9, November 1958, p 196 
3 Same as Reference 1, pp 61-73 
4 Ibid., p 212 
5 The Airman magazine, USAF, July, Aug 1961 
6 The Airman magazine, USAF, January 1962 
7 Scientific American, IV, Feb 3, 1849, p 157 
8 Karara, H. M., The Story of Photogrammetry, University of 
Illinois, Lecture Notes. January 1964 
9 Ibid 
10 Laussedat, Aime, Recherches sur les instruments, les methodes 
et le dessin topographiques. 1898 
11 Same as Reference 2, p 197 
12 The Complete Photographer. Vol. 6, pp 2175-2177 
13 Smith, C H. Gibbs, Ballooning. Penguin Books, London, 1948 
14 Photo Miniature. July 1903, Vol. V No. 52 pp 154,155 
15 Same as Reference 2, p 201 
16 Same as Reference 12, pp 2177-2179 
17 Babbington-Smith, Constance, Air Spy. N.Y., Harper, 1957 
18 Haydon, F. Stansbury, Aeronautics in the Union and Confederate 
Armies, Baltimore, The Johns Hopkins Press, 1941, Vol. I, pp 334,335 
19 Same as Reference 2, p 204 
20 Ibid, p 207 
21 Ibid, p 209 
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