London, British Museum, Royal 12 C XII

Short title	Miscellaneous Collections
Century	14
Precise date	c. 1320-40
Language	English \| French \| Latin
Previous owners	Belonged (1) to (John, Lord) Lumley.
Material	Membr.
Height × width	150 x 230 \| 9 1/4 x 6 in.
No. of leaves	123
Gatherings	Gatherings, (artt. 1-17) 1^7 2^9; (artt. 18, 19) 1^12 2^4; (artt. 20, 21) 1^12 2^9 3^8; (art. 22) 1^7; (artt. 23-35) 1-4^8, 5^7; (art. 36) 1<^1?> 2^8. Sec. fol. 'Edwardus dei gratia'.
No. of hands	In various hands.
No. of columns	1 & 2 cols.
Initials etc.	Art. 18 has an illuminated initial.
Marginal annotations	For one of the hands of art. 20 see pl. 69.
Printed catalogs	Casley, D., A catalogue of the manuscripts of the King's Library (1734) 203. \| Lumley cat. 334; cat. of 1666, f.11; not in CMA. \| Warner, George F. & Gilson, J.P., Catalogue of Western Manuscripts in the Old Royal and King's Collections II (1921) 26-9.
Publ. descriptions	Meyer, Paul, Notice sur le ms. Old Royal. 12.C.XII du Musée Britannique (Pièces diverses - Recettes culinaires), Bulletin de la Société des Anciens Textes Français 19 (1839) 38-56. Petri Philomenae de Dacia et Petri de S. Audomaro Opera quadrivialia 1 (1983) 239f. (Teilbeschr.)
Source	Folkerts (1969; 10.2.83) \| Warner & Gilson II (1921)
Type of source	cat. \| pvt. notes
Source’s source	insp.

Work 1	Title (ms.)	Miscellaneous Collections in prose and verse; contents:
Work 1	Additional remarks	36 parts
Work 2	Title (standard)	Cautele algorismi
	Contents	Eighteen arithmetical and other puzzles, sometimes called cautelae algorismi.
	Incipit	Destinet aliquis super denarium
	Printed catalogs	Glorieux, P., La faculté des arts et ses maitres au XIIIe siècle (1971) 456. Singer, D.W., Hand-list of scientific mss. in the British Isles dating from before the sixteenth century # 213; cf. Transactions of the Bibliographical Society 15 (1917-9) 185-99.
	Item no.	9
	Folio no.	8- \| 8r-11r
	Rubric	Hastucie algorismi
	Additional copies	Most of which occur in one of the similar collections in Royal 12 F. XIX, f.184; Add. MS. 30380, f.183b, and Sloane MS. 3281, f.54.
	T & K	TK 404
	Additional information	A few come from the Propositiones ad acuendos iuvenes, a collection probably taken from the Greek and attributed to Bede or Alcuin (migne, Patr. Lat. XC. 667, c. 1143). One of these is the familiar ferry-boat problem (see W.W.R. Ball, Math. Recreations, 1896, p.61), but the answer to it is here in verse, as also to two others. \| Beaujouan, G., El 'nséignement de l'arithmétique élémentaire à l'université de Paris aux XIIIe et XIVe siècles. De l'abaque a l'algorisme, Homenaje a Millás-Vallicrosa, I (1954) 116 Anm. 57. Folkerts, M., Mathematische Aufgabensammlungen aus dem ausgehenden Mittelalter. Ein Beitrag zur Klostermathematik des 14. und 15. Jahrhunderts, Sudhoffs Archiv 55 (1971) 58-.
Work 3	Title (ms.)	Liber experimentarius or book of astrological sortes \| Prognostischer Text
	Incipit	Almazena primus. Hoc ornamentum decus est et fama parentum
	Additional remarks	Der Text hat mit Mathematik nichts zu tun. Auch sonst ab 107 keine Mathematik. Texte bis 107 wurden nicht geprüft.
	Item no.	36
	Folio no.	108- \| 108r-
	Tables	They are preceded by a table which begins 'De uita quid erit quere a sedente super orientalem faciem turris Saturni'.
	Additional copies	Translated from the Arabic, according to some MSS., by Bernard Silvester (of Chartres), see Black's Catal. of Ashmole MSS. each set bearing an Arabic title. The first title is Almazena, the last Algagamenar. The translation here is in leonine hexameters having a nearer approach to auntitative scansion than that in Royal 12 E. IV.
	T & K	TK 395 (De sortilegiis algorismi)