Postcard showing a landscape around Llanrhaiadr-ym-Mochnant, North Wales. Published by Lloyd, Llanrhaiadr.

The section comprises notes and slide lists for lectures given to extra-mural classes, natural history societies and other groups at different locations throughout mid-Wales, and in Shropshire, 1966-1993, and scripts for radio and television programmes, 1948-1980, together with relevant correspondence. Subjects include ecological and environmental issues, conservation, nature reserves, geology and topography.

The unit consists of notes and printed material relating to Welsh topography and history, 1928-1997, nature diaries, 1935-1998, field notebooks, 1952-1994, personal diaries, 1994-1998, notes and printed matter relating to Henry Thoreau, 1943-1999, and other naturalists, 1935-1996, correspondence, [c.1938]-2016, and travel records, 1947-1994.

The group consists of notes, drafts, correspondence, press cuttings, leaflets and other printed material used in the preparation of books and articles, a large quantity of Condry's finished newspaper and magazine articles, and substantial number of card indexes, 1893, 1933-1998, on the subjects of wildlife, development and history of the landscape, nature conservation, ecology, other naturalists, past and present day travel and tourism. The subjects relate mainly to Wales, but also to other parts of Britain, Europe and Africa.

Correspondence and papers relating to the administration of the exhibition The Dark Hills: The Heavy Clouds, which aimed to express the Welsh landscape through the work of seven painters, 1981-1982. The file includes letters written by Ernest Zobole.

Correspondence and papers relating to The Shadow of my Hand touring exhibition to celebrate the Welsh landscape by artists in Wales, 1981-1982, organised by the Oriel Gallery.

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.