Raymond Unwin's letters concern the Cities and Town Planning Exhibition and its possible visit to America. There is a typescript of an agreement between Joseph Fels, John Willis Slaughter and Marcel Hardy of 1912 (folio 190), by which Slaughter and Hardy were to become agents for Fels in the purchase of land for cultivation in Paraguay. A letter of Patrick Geddes to Mrs Fels, 1920 (folio 146), is published in part by Philip Mairet in ‘Pioneer of Sociology’, page 186.