Envelope addressed to Dr Margaret Barclay (later Schofield) containing typescript papers relating to her work with the Research Department of the Calico Printers Association on nuclear methylation of aromatic phenols or aromatic animes. The papers include the Research Department's response to objections raised to a patent they had applied for for Terylene, as well as a printed version of a letter to the Editor of 'Nature' from May 1943.