Oxford, Bodleian Library, Bodley 507 Century 15 med. Language Latin Owner’s notes (1) "Clemens Cantirbury" (s. 16) Previous owners Presented by Thomas Twyne in 1612. Material Chart. Height × width 9 x 6 1/4 in. No. of leaves iii + 28 Cover Two pieces of canvas, perhaps part of a s. 16 binding, era on IIv, 27r, with "Hew Clement" "Clow" (?) and some drawings. Initials etc. With coloured capitals Printed catalogs F. Madan & H.H.E. Craster, A summary catalogue of western manuscripts in the Bodleian Library at Oxford II 1 (1922) 241 # 2171. Source Folkerts | Madan & Craster (1922) Type of source cat. | pvt. notes Source’s source insp. Work 1Author standard Alexander de Villa Dei Title (ms.) Massa computi Contents The verses beg. "Aureus in Jano". Incipit Licet modo in fine Folio no. 1- Rubric Massa computi Additional texts (12) Followed by a short calendarial poem, which beg. "Filius esto Dei". Glosses etc. (iii) The prophecy of Hildegardis against mendicant monks. Work 2Title (ms.) A Computus manualis Incipit Intencionis in hoc episculo (sic) est artem ostendere Folio no. 12v Work 3Title (ms.) The calendarial poem called "Cisio janus" Incipit Cisio janus Folio no. 18- Work 4Author standard Alexander de Villa Dei Title (standard) Algorismus Contents A treatise on Arithmetic. Printed catalogs C. Singer & D.W. Singer, Hand-list of scientific MSS. in the British Isles dating from before the sixteenth century # 366; cf. D.W.Singer, Transactions of the Bibliographical Society 15 (1917-9). Additional remarks in verse Folio no. 19- | 19r-24 Rubric Ars & liber Algorismi Glosses etc. With notes and preceded by notes. Followed by some astrological notes and an English recipe. Work 5Title (ms.) Some arithmetical puzzels Folio no. 24 | 24r Additional information M. Folkerts, Mathematische Aufgabensammlungen aus dem ausgehenden Mittelalter, Sudhoff's Archiv 55 (1971) 58-75.
