ENGLISH COMPOSERS. -- A collection of autograph letters signed and one autograph musical quotation signed, comprising: ELGAR. Autograph letter signed, Gloucester,'Sep.16', referring to the impossibilty of going to Leeds and to a promise he had made to Sir Arthur Sullivan, 1 page, 8vo. - SULLIVAN. 4 autograph letters signed, London and St Moritz, 1879-1899, including one referring to the piano arrangement of The Tempest with musical examples, 11 pages, 8vo. - STANFORD. 11 autograph letters signed, London, September-November 1916, mostly concerning musical instruments, 14 pages, 8vo. - STERNDALE-BENNETT. 4 autograph letters signed, London, 1844-1873, 10 pages, 8vo. - CROTCH. 3 autograph letters signed and an engraved portrait of Crotch. - BALFE. 2 autograph musical quotations signed, one comprising 9 bars from The Siege of Rochelle, and an autograph letter signed.