Correspondence in the form of comment on Mottram publications: letter from Robert Bly, published in The Times Literary Supplement, 8 Apr 1965, in criticism of Mottram's review of McClure, with response from Mottram; manuscript letter, 1969, from John Sharkey apparently commenting on 1966 essay 'A model of space and time'; typescript letter, 15 May 1973, from Klaus Poenicke, Munich, commenting favourably on Mottram book on William Burroughs and seeking a meeting to talk further; typescript postcard from Richard Kostelanetz, 2 Jan 1974, enquiring about Mottram booklet on Allen Ginsberg; manuscript letter, undated [1976], from Simon----, concerning Mottram essay on guns, with printed Mottram bibliography attached, as though for despatch in response; typescript letter from Toronto, 1978, enclosing hostile review of 1977 edition of William Burroughs: the algebra of need; typescript letter, 12 May 1984 from Ed Foster in New Jersey, expressing appreciation of the Mottram essay on cars and enclosing an offprint of his own article 'This cowboy is an engineer: popular fiction, politics and the west' from Rendezvous 19 (1983)