The file consists of a diary of the holiday in Switzerland, 1956, written on loose ring-binder pages and it includes the description of a visit to the Swiss National Park, with additional notes on loose index cards relating to its origins, places of historical and scenic interest, pine trees, distribution of brown bears, and reminders referring to Condry's diary.

The contents of the file include a study of bird life on Tregaron Bog (Cors Caron); a bird list for Bardsey with other notes on the island's plants, animal life, human habitation, agriculture, place names and a list of items required for the newly established observatory; birds and plants of Morfa Harlech; observations from a harrier hide at Tregaron; polecats in Cardiganshire; brief notes on cottage industry and bird life of Anglesey; visits to upland sites, mainly Cardiganshire, briefly noting plants and birds; detailed observations of wildlife and scenery during a visit to Switzerland and draft for 'A Welsh Nature Note' article (deleted).