Oxford, Bodleian Library, Bodley 607 Contents A list of contents is on IIv. Century 15 in. Place of origin England Language Latin Previous owners "Nicholaus Smythe" owned the book on Dec. 25, 1589, ans notes the difficulty his friends had in reading and understanding the writing: "Renauld Smythe" also owned it about the same period. This MS. seems to have reached the Library in 1603 or 1604. Material Membr. Height × width 6 x 4 3/8 in. No. of leaves vi + 101 Cover White parchment on boards, clasp lost, contemoporary English work: there is a cavity in each side to hold some instrument or box. Initials etc. with illuminated capitals, etc. Printed catalogs F. Madan & H.H.E. Craster, A summary catalogue of western manuscripts in the Bodleian Library at Oxford II 1 (1922) 187-8 # 2058. Source Folkerts | Madan & Craster (1922) Type of source cat. | pvt. notes Source’s source insp. Work 1Title (ms.) Scientific treatises, containing amongst other things: Work 2Scribe(s) Johannes Title (ms.) De ciromancia tractatus Incipit Benedictus Deus omnipotens qui machinam Additional remarks Four leaves appear to be lost after 2. Folio no. 1- Rubric De ciromancia tractatus Work 3Title (ms.) Forma de nouo instrumento Nauicula Incipit In hoc instrumento due figure zodiaci Folio no. 16- Rubric Forma de nouo instrumento Nauicula (sic, pro dicto) pro horis equalibus in tota terra inueniendis Work 4Title (ms.) Compotus manualis Incipit Filius esto Dei ... Pro inuencione litere Dominicalis. Additional remarks A calendarial work, in verse and prose. Not the same work as 73-. Folio no. 19- Work 5Author standard Alexander de Villa Dei Title (ms.) Algorismus integrorum | Carmen de Algorismo Contents A treatise on arithmetics. Incipit Hec algorismus ars presens dicitur in qua ... Liber iste quem pre manibus habemus. Printed catalogs C. Singer & D.W. Singer, Hand-list of scientific MSS. in the British Isles dating from before the sixteenth century # ; cf. D.W.Singer, Transactions of the Bibliographical Society 15 (1917-9). Additional remarks The metrical portion is by Alexander de Villa Dei, the author of the prose commentary seems not to be known. Folio no. 24- Work 6Author standard Johannes de Sacrobosco Title (ms.) Tractatus de Sphaera Additional remarks Originally followed by twelve leaves now lost and then by 73-. Folio no. 45- Rubric Tractatus de Sp(h)era Math. drawings With a diagram. Work 7Author standard Roger Bacon Title (ms.) De naturis metallorum Contents An alchemical treatise. Incipit Breue breuiarium breuiter abreuiatum sufficit. Folio no. 63- Colophon Explicit Breue breuiarium Work 8Title (ms.) Compotus ecclesiasticus (aceph., inc.) Contents The first verse beg. "Lux naturalis viginti quatuor horis": ends "in 4^or ciclis", with catchword "excrescente". Incipit a planeta in prima hora illius diei Additional remarks A calendarial work in verse and prose. The succeeding two gatherings being lost the followed 63-. Two leaves are lost after 83. Folio no. 73-