The section comprises loose, handwritten and typed notes, notebook, binders, substantial correspondence, photographs, vegetation samples, circulars, press cuttings, maps, loose printed articles, offprints and information leaflets, accumulated during work in natural history and conservation. The material is indicative of Condry's dedicated and detailed approach to research concerning plants, birds, animals and their different habitats. It is obvious that some of the information which he gathered represented an extension of his personal interests and was used for the compilation of books and articles. -- The main subjects comprise botany, ecology, geology, zoology and the work of other naturalists, such as Evan Price Evans, Mary Richards and Evan Roberts. Regular correspondents include Peter Benoit, E. H. T. Bible, Arthur Chater, Dafydd Davies, Evan Price Evans, Jack Grasse, Dewi Jones, Derek Ratcliffe, Mary Richards, Richard H. Roberts, Morrey Salmon, H. R. H. Vaughan and Irene Vaughan.