538 Only Nos. 1, 2, 4, 5, 7, 9, 14 are derived from Vivaldi. The others are founded on Benedetto Marcello (No. 3), Duke Johann Ernst of Weimar (Nos. 11, 16, and perhaps 13). 539 The Toccata is by Henry Purcell. See Grove, vol. iii. p. 857. 540 The volume also contains a Variant of the first Organ Concerto (B.G. XXXVIII.). 541 The Concerto is an arrangement of one by Antonio Vivaldi for four Violins, the original of which (in B minor) is given in the Appendix to the volume. 542 Omitting the vocal numbers, movements printed elsewhere, and the “Menuet fait par Mons. Böhm,” Peters’ Bk. 1959 contains the remaining twenty numbers of the Notebook. They are indicated in the above index by a P in a bracket. 543 A separate Preface to the reprinted Suites is by Ernst Naumann. It is dated 1895. 544 Perhaps an arrangement of an orchestral piece. See Schweitzer, i. 342 n. 545 The Appendix to the volume contains addenda to the Violin Concerto in A minor (see B.G. XXL. (1)) and Cantata 188 (see B.G. XXXVII.). Also the Zurich and London texts of the “Welltempered Clavier” (B.G. XIV.), with critical notes. 546 The Preface is dated 1899. The volume was issued in 1900. 547 The original words are “Die Schätzbarkeit der weiten Erden.” 548 The title-page is dated 1913 and the Preface “Im Advent auf 1914.” 549 The Aria is no. 20 of A. M. Bach’s “Notenbuch” for 1725. See E.G. XLII. (2) no. 20. 550 This publication, announced for 1916, appears under a different title as the third issue for 1917. See infra, XVII. (3).