Photographs taken during a trip to southern Africa during August and September 1905. None of the negatives is dated, but the shots can be dated from the diary which REY kept for most of the trip, together with information from letters home. Photographs feature Table Mountain, Muizenberg, Karroo, Natal, the Transvaal, Bechuanaland, Rhodesia, Portuguese East Africa, and British East Africa (as they were then).
Photographs taken in Switzerland, mostly of scenery. Seven of the shots are dated: 3 are dated March 1903 and 4 are dated Dec. 1902, so it has been assumed that all were within this period.
Individual photographs, organized by size rather than subject matter.
Photographs taken in North Wales. Only the first is dated 1900, the remainder are undated.
Photographs taken during Yapp's participation in the Cambridge University Expedition to the north-eastern Malay states and Upper Perak in 1899-1900, led by William Walter Skeat. The expedition party consisted of W.W. Skeat (Christ's College, Cambridge), Nelson Annandale (Balliol College, Oxford), Richard Evans (Jesus College, Oxford), D.T. Gwynne-Vaughan (Christ's College, Cambridge), Frank F. Laidlaw (Trinity College, Cambridge), and Richard H. Yapp (St John's College, Cambridge). Laidlaw and Yapp joined the party later, in August 1899, and Yapp sailed for England in February 1900. The photographs in this collection date from October 1899 until the end of his trip, though most are undated. Some dates can be determined from published accounts of the expedition and from Yapp's correspondence.
Photographs taken on a trip to Italy, probably following directly on from Yapp's trip to Switzerland in March 1903, so assumed to be March-April of that year. None of the negatives is dated.
These negatives are numbered, but nearly all of them are unlabelled. Only three are dated. Some photographs show individual plants, some show plant habitat, and some are of diagrams. Some appear to show plates or figures from publications.
These plates are not individually labelled or numbered, but were simply in a box marked 'Frost plates'.
Photographs of plants, landscape, and features of the Fens. Some photographs are undated, but those that are date from the May Term of 1902 to the summer of 1908.
Photographs taken in Cornwall of flowers, scenery, and family members. One photograph is dated June 1906, the remainder are undated, but are assumed to have been taken around the same time.