Oxford, Bodleian Library, Savile 18 Century 15 Place of origin England Language Latin Previous owners The binding suggests that this belonged in s. 15 to the Franciscans of Doncaster, as GOxfB Savile 15, Savile 19, Savile 20. In s. 16 it belonged to George Eden (inner back cover) who owned # 2001 of F. Madan, H.H.E. Craster & N. Denholm-Young, A summary catalogue of western manuscripts in the Bodleian Library at Oxford II 2 (1937), which probably came from the same source. In s. 17 it passed to Richard Eden, and from him to "Knyveton" (37v, 171, 171v). It eventually became # 5 in Dr. John Dee's library and contains autograph notes by him. Material Membr. | Membr. & Chart. Height × width 145 x 205 | 8 2/5 x 5 3/6 in. No. of leaves 171 | ii + 171 Cover White leather on boards with clasp (cf. GOxfB Savile 19, &c.), s. 15 English work. Printed catalogs F. Madan, H.H.E. Craster & N. Denholm-Young, A summary catalogue of western manuscripts in the Bodleian Library at Oxford II 2 (1937) 1105 # 6564. Source Folkerts | Madan et al. (1937) Type of source cat. | pvt. notes Source’s source insp. Work 1Title (ms.) Philosophical treatises, among which are: Work 2Title (ms.) Astronomical tables (inc.) Folio no. 1 Work 3Author standard Roger Bacon Title (ms.) De multiplicacione specierum (6 pts.) Contents Part 6 begins separately at 164v. Incipit Primum capitulum circa influenciam agentis habet tres veritates Folio no. 89-, 164v- Work 4Author standard Roger Bacon Title (ms.) Perspectiva (3 pts.) Incipit Propositis radicibus sapiencie tam diuine quam humane Folio no. 113- Glosses etc. (170v) Some s. 17 notes on mirrors. Work 5Scribe(s) Dieselbe oder zeitgleiche Hand wie 89-, 164v-. Title (ms.) Quadranttraktat (inc.) 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). Folio no. 168r-70 Explicit Quadrantis descriptionem ac eius officium primo premittere. Est enim quadrans instrumentum quoddam