Box of photographs of Sikkim including plants and locations, taken by Colonel Duncan George Lowndes between around 1935 and 1937, filed alongside correspondence to R.E. Cooper regarding the photographs, and lists of plants sent to RBGE (accompanying herbarium specimens) and notes to and from James Sinclair regarding some of his plant identifications.

•Map of Sikkim and a box containing photographs and negatives (1948-1950) and also a letter to Henry Noltie from D. Jeremy Wood regarding the photos (19 Jul 1995).

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.