Jordanus

✕☰

Città del Vaticano, Biblioteca Apostolica Vaticana, Vat.lat.4826

Century	15
Precise date	1450
Method of Dating	w
Language	Italian \| Latin
Subject 1	Mathematik
Material	chart.
Format	4 \| f pet.
Height × width	286 x 203
No. of leaves	59 \| 72
Numbering	ff. orig. 1-59, 59-66, 69-73
Gatherings	<a>^12 <b>^14 <c-e>^12 <f>^10
Watermarks	<a-e> like Briquet 11702 (1440); <f> = Briquet 5905 (1450-4)
Cover	ant. red leather cover stamped with papal arms
No. of hands	1
Type of writing	a neat semi-cursive Gothic
No. of columns	1 col.
Width of columns	press-ruled 194-205 x 118 mm.
Lineation	32 regularly-spaced lines
Ink	dark brown ink
Initials etc.	alternating red and blue initials, some decorated; \| capitals shaded in yellow on 1r, 33v-41r, lined in red on 41v-42r; some titles in red.
Decorations	Tables on 2v, 3r, 4v-14v outlined in red; many coloured diagrams and drawings in the margins.
Printed catalogs	Biblioteca Apostolica Vaticana, Sala. Cons. Mss.305 (ET. ROSS A) p.369 \| Kristeller P. O.: Iter italicum II, S.330 \| Van Egmond, W.: Practical Mathematics in the Italian Renaissance, Florenz, 1980, S.224/225;
Publ. descriptions	Verzeichnis Van Egmond;
Source	Biblioteca Apostolica Vaticana, Sala. Cons. Mss.305 (ET. ROSS A) p.369 \| Katalog Folkerts
Type of source	cat. \| cat.(ms.)

Work 1	Author (ms.)	Iacobus de Florentia
	Author standard	Jac. de Florentia \| Jacobus de Florentia \| Jacopo da Firenze
	Title (ms.)	Algorismus, in quo de supputationibus Arithmeticis Mercatorum, et Geometricis Tractatus de monetis earumque valore
	Title (standard)	Algorismus, volg. \| algorismus, volg. \| Tractatus Algorismi
	Contents	Introduction, "de numeri rocti" (15r), "alcune ragioni" (17r), "de mesure" (30r), algebra (36v), "de leghe de monete" (45v), miscellaneous problems (50v).
	Incipit	Conciosia cosa che \| Conciossia cosa che tucte quelle cose che la humana generatione de questo secolo sanno et possono sapere ...
	Publ. descriptions	Karpinski, Louis C.: The Italian Arithmetic and Algebra of Master Jacob of Florence, Archeion 11, 1929, S.170-177;
	Facsimiles	of 1v-2r in Karpinski, Louis C.: The Italian Arithmetic and Algebra of Master Jacob of Florence, Archeion 11, 1929, between pages 176 and 177;
	Folio no.	1-59 \| 1r-59v
	Prolog	Incipit tractatus algorismi. Huius autem artis novem sunt speties, silicet numeratio, addictio, subtractio, duplatio, multiplicatio, divixio, progrexio, et radicum extractio, conpilatus a magistro Iacobo de Florentia apud montem Phesulanum anno domini m^occc^ovii^o in mensis septenbris.
	Explicit	multipricha per 5 fa 25 et sta bene; et cosi se fanno le simigliante r<agione>.
	Other passages	f.73v dated 1497
	Additional texts	f.59'r: Canzone (in a later hand); inc.: Io piagno el mio tormento el tempo perso/ ... f.60r: Three notes in later hands; inc.: Recordo per trovare la pacta ... Per fare aqua o vino contra magnatti ... Deus qui beato patritio confessori tuo potentiae ...
	Scribbles	59'v, 62v, 63r, 71v, 72r, 73r-v: miscellaneous scratch notes
	Blank leaves	60v, 61r, 61v, 62r, 63v, 64r-71r, 72v
	Additional copies	Ricc. 2236, Trivulziana 90;