32 SOCIAL SCIENTIST '88 Oparin, Life : Its Nature, Origin and Development, pp 23-29. 184 F Engcis, Dialectics of Nature, op,cit., p 39. IBS ponnarnpcruma, op.cit., p 189. 186 Henry T Simmons, "The Search for Extraterrestrial Lifc,^ Span, September 1966, p 6. 187 Fox and Dose, op.cit., pp 320-32 2; M D Papagiannis, Space Physics and Space Astronomy, Gordon and Breach Science Publishers, London 1972, p 226. 118 Ponnampcruma, op.cit., pp 163-188. 18 » New Scientist, 17 June 1976, p 63 5. IAO C Sagan and S Drake, "The Search for Extraterrestrial Intelligence," Scientific American, May 1975, p 83. ' * * New Scientist, 29 July 1976, p 217. 14a Ibid. '4 8 New Scientist, 26 August 1969, p 439. i*4 Ibid. * *8 Indian Express, IS^August 1976. 1 * 6 Sagan and Drake, op. cit., p 82. 147 Simmons, op. cit., p 9. 148 Sagan and Drake, op. cit., p 82. l*9 Simmons, op. cit., p 10.