Papers of Arthur George Tansley FRS, plant ecologist A small collection of papers mainly related to the formation of organisations, in the period 1918-1921, that aimed to promote pure and applied scientific research. The bulk of the collection consists of papers relating to Tansley's involvement in the Scientific Research Association. The Scientific Research Association's papers include rules, promotional leaflets and circulars, financial material and a relatively large amount of correspondence. A smaller amount of material survives for the National Union of Scientific Workers including rule booklets, membership lists, reports from meetings, agenda and promotional leaflets and circulars. Only a few items are preserved in this collection for the Federation of Technical and Scientific Associations and the Cambridge Research Group. The published articles and reports at AT/5 mainly concern issues related to the funding, support and the general state of scientific research. 1872-1921