Music, etc., viz.:-(a) Italian cantata, by Handel; 18th cent. f. 1;-(b) Signature of Haydn; circ. 1791. f. 5;-(c) "Quatuor énigmatique," by Charles Simon Catel; 1811. Autograph. f. 6 b; -(d) Canon by Beethoven; 1825. Autogr. f. 8;-(e) First violin part of overture "Polonia," by Wagner; [1833]. A...