Catchwords as usual. In many instances, however, the last few words of a leaf are repeated on the next, with or without an additional catchword. The MS abounds in mathematical figures. Fol. 48 is an added small paper leaf, text only on recto not by the scribe but in the same hand as the marginal notes. The corrosion of the margins has affected the text on several leaves, especially on fols. 1-80, 202-212. Warn. 48 (Or. 4786). 210 X 145 (155 X 96), 29 lines. Warn. 49 (Or. 4787). 113 + 1 fols., 210 X 130 (155 X 91), 25 lines. Quires are indicated by a sign in the lower margin of the last leaf of each and perhaps by a Latin letter, now mostly cut off: 111-1(5) VII(19) IV(27) 7(36) 9IV(108) IV-2[114]. Fol. 107 is a blank leaf, substituted for the original which has been removed. NB : Previous owners were (fol. 113 to ): “Moses Mi-Zurudi" and “Josef Maroli" (see Steinschn. p. 221 and compare p. 219). Three epigrams, on fol. 113 b : 1) Davidson alef, 8241 2) Davidson alef, 8304 3) bps'? ' jam td n»x Warn. 50 (Or. 4788). 3 + 92 + 3 fols. and two pastedowns, 205 X 148 (165 X 106), 29 fines. Binding : blind tooled leather on cardboard. Original? Catchwords from page to page on fols. 1-32, 36-56 (the first hand) and from leaf to leaf on fols. 33-35, 58-91 (the second hand). A second hand begins on fol. 33 a , announced by a remark in this same hand in the lower margin of fol. 32 b (nnx mpaa anal nt TIBS) and by the catchword on that page. The original catchword of fol. 32 b is crossed out. Fol. 33 a is headed by a long note written in this second hand. In the middle of fol. 37 a the first hand takes over again. From fol. 59 the MS is written by the second hand. Foliation in Hebrew letters (by the second hand?). All the pages written by the first hand have the ligature of n"S3 in the upper margin; so have fols. 33 a and 59 a . Warn. 51 (Or. 4789). 84 + 5 fols., 208 X 145 (183 X 103), 30 fines. Catchwords from page to page. Warn. 52 (Or. 4790). 1 + (127 + 57 + 133 = 317) + 2 fols., 206 X 150 MS. I : (154 x 105), 24 lines; MS II: (varies), varies; MS III: (135 x 86), 21 fines. On fol. l b an index of the texts in this volume, written in a sefardi cursive hand similar to that of MS I. This index was supplemented by Steinschneider who added some titles, numbers (1-17), and folio numbers. MS II: Catchwords are given in A and C. A, C and D are written by the same hand.