I am looking to buy, exchange etc some missing issues of Animal Kingdom published by the New York Zoological Society; 1943; all six issues 1971; issue 5 1972; issue 3 1975; issue 2 1976; issue 2 1978; Issue 1,2,3,4,5 1987; issue Nov/Dec Also many of the successor magazines from 1990 Wildlife Conservation. Please any offers will be greatly received. Butch