COMPOSERS AND MUSICIANS -- 19th CENTURY. Collection of letters by composers and musicians including Gaspare SPONTINI (to Jacques-Louis DAVID, on his failure to be elected to the Insitut de France, laid down), Joseph JOACHIM (letter and autograph quotation signed), Ignaz MOSCHELES (to Julius Benedict, 1853), Cosima Wagner (1859), Hans von Bülow (1889), Eduard Hanslick (card), Stephen Heller (to Moscheles, 1843, with a musical quotation) and Theodor Billroth (card).