Cambridge, University Library, Kk. I. 1

Century	13 (chiefly)
Material	Membr.
Format	f (small)
No. of leaves	248
No. of columns	2 cols. (most of the vol.)
Decorations	With many geometrical figures.
Marginal annotations	Very carefully written.
Printed catalogs	Hardwick & Luard, H.R., Catalogue of the Manuscripts preserved in the Library of the University of Cambridge III (1858) 547-50 # 1935.
Source	Folkerts \| Hardwick & Luard III (1858)
Type of source	cat. \| pvt. notes
Source’s source	insp.

Work 1	Title (ms.)	A Collection od Astronomical Treatises, among them being:
Work 2	Author standard	Ptolemaeus
	Title (ms.)	Liber Quadripartitus
	Incipit	Rerum Yesure in quibus est pronosticabilis scientie rerum profectio
	Item no.	2
	Folio no.	62-96a
	Additional texts	There follows on 96a, col. 2, a short extract commencing: Cum projectionem radiorum stellarum.
	Additional copies	See Ii. III. 3, § 17.
Work 3	Title (ms.)	De Astrolabio
	Item no.	6
	Folio no.	115b-9b
	Additional copies	See Hh. VI. 8. The present MS. answers to 181-6 in that Volume.
Work 4	Title (ms.)	A Tract on the Stereoscopic projection of the Sphere, with a Comment
	Incipit	Spera in quolibet polorum planum contingente
	Item no.	7
	Folio no.	119b, 120
	Explicit	(comm.) hoc est in o erit situs illius: quod proponebatur. \| et in plano situs cognitus erit.
	Math. drawings	With figures.
Work 5	Title (ms.)	A Tract on Proportion, with a Comment
	Incipit	Proportio est rei ad rem determinata secundum quantitatem habitudo
	No. of columns	1 col.
	Printed catalogs	Glorieux, P., La faculté des arts et ses maitres au XIIIe siècle (1971) 244.
	Facsimiles	Clagett, M., Medieval Mathematics, Physics and Philosophy: A Revised Catalogue of Photographic Reproductions, Manuscripta 3 (1959) 24.
	MF copies	Clagett, M., Medieval Mathematics and Physics: A Checklist of Microfilm Reproductions, Isis 44 (1953) 378.
	Item no.	8
	Folio no.	120, 121a
	Explicit	(comm.) et omnes pariter fiant, &c. \| ex proportione primi ad tertium et quarti ad secundum.
	T & K	TK 1139
Work 6	Title (ms.)	De Usu Astrolabii
	Contents	This work is in 40 chapters, whose contents are prefixed.
	Incipit	Primum horum est Armilla per quam suspenditur
	Item no.	9
	Folio no.	121a-6
	Rubric	Primum Capitulum astrolabii in inventione nominum super illud cadentium.
	Explicit	de annis Christi ex annis Arabum si Deus voluerit.
Work 7	Title (ms.)	De inventione sinus et declinationis per Kardagas
	Incipit	Cum cujuslibet gradus scire volueris sinum vel declinationem
	Printed catalogs	Glorieux, P., La faculté des arts et ses maitres au XIIIe siècle (1971) 457.
	Item no.	10
	Folio no.	127, 128a
	Explicit	et sic habebis elevaciones ipsorum graduum cum suis minutis.
	Tables	At the foot of the page is Tabula Kardagarum. 'Kardaga est portio circuli ex 15 gradibus'.
	T & K	TK 288
Work 8	Author (ms.)	Robt. Grosteste
	Author standard	Robertus Grosseteste
	Title (ms.)	De arte Computi \| De arte Computi per Robt. Grosteste
	Incipit	(after the table of Capitula) Compotus est scientia numerationis et
	Item no.	15
	Folio no.	187-200
	Explicit	Petrus et Andreas Paulus, cum Simone Judas / Ut jejunemus nos admonet, atque Matheus.
	Tables	With a perpetual table of moveable feasts.
	Additional copies	See Tanner, p. 346, note a.
Work 9	Title (ms.)	Theorica Planetarum (inc.)
	Incipit	Circulus solis dicitur esse ecentricus, non quia centrum non habet
	Additional remarks	The present copy is defective of the end.
	Item no.	16
	Folio no.	201-20
	Explicit	et circumducatur circulus ADBE ubi
	Additional information	This would seem to be Grostete's by comparison with the abridgement of Grostete's Theorica by Johannes de Sacro Bosco, Ii. I. 1, § 317. The commencement, however, of the treatise as given in Tanner and Bale varies, reading lunae for solis.