Page 2 - For 18 years, Walter Russell Crocker represented Australia abroad, as High Commissioner to India (twice), and in Canada, Kenya and Uganda, as Ambassador to Indonesia, Nepal, Italy, Ethiopia, the Netherlands and Belgium. Now retired, he has collected his experiences in those years, AUSTRALIAN AMBASSADOR and his own often iconoclastic reflections, in his book, 'Aus tralian Ambassador', published last week. By arrangemen with his publishers, the Melbourne University Press, The Canberra Times publishes excerpts from 'Australian Ambas sador' on this page today, tomorrow and on Wednesday. Certain fears shape our foreign policy