This collection consists of material created and gathered from the expeditions of F. Ludlow and G. Sherriff, thought their expeditions of Bhutan and Tibet during 1933-1949.

The collection consists of 5 sub-series: plant documents, expedition documents, diaries, correspondence and visual material.

[1] This series consists of a variety of material which includes plant and seed lists from their expedition with a large focus on Primula, Meconopsis and Rhododendrons, as well as publications gathered by Ludlow and Sherriff which cover their shared interest in the Himalayan region and it's flora and fauna. There is also a garden register donated by the Knox Finlay family detailing the progress of plants/seeds in their gardens acquired from various expeditions including Ludlow and Sherriff's between 1951-52.

[2] This series consists of a variety of expedition documents ranging from itineraries and maps to administration lists and passports.

[3] This series consists of originals and photocopies of the diaries of Sherriff and Ludlow during their expeditions.

[4] This series consists of a variety of correspondence from and to Sherriff and Ludlow over the course of their expeditions.

[5] This series consists of a variety of material including: photographic material, films and videos. Photographic material ranges from prints and negatives taken by Sherriff and Ludlow to prints of digital images taken as exhibition documentation in 2014. The films are..... There have been dvd surrogates made of the films to ensure continued accessibility.

Eight boxes of material relating to Roland Edgar Cooper who was Curator (Head Gardener) at the Royal Botanic Garden between 1934 and 1950. Material consists of correspondence, field notes, photographs and maps from his plant collecting expeditions in Sikkim, Bhutan and Punjab between 1913 and 1916, and family / genealogical information.