The series comprises Condry's card indexes relating to animal, bird and plant life, topography, geology, ecology, habitats, tourism, travel, landscape history, the author's own diaries, his published works and numerous bibliographic references. Most of them refer to Wales, but some of them are indicative of his interest in African wildlife and plants. Many of the entries are expanded with insertions of relevant notes, correspondence and printed articles, 1930-1998.

The series comprises notes, drafts of articles, reports, correspondence, maps, printed articles and press cuttings relating to island habitats, 1956-1982; geographical and geological features, 1963-1996; and the history, landscape, wildlife and conservation issues of Snowdonia, 1947-1995.