Firenze, Biblioteca Riccardiana, Cod. 2252

Old shelfmarks	R. III. 28
Century	14
Composite ms.	2 parts
No. of ms. part	I-II
Material	Chart.
Format	f
No. of leaves	169
Numbering	ant. and mod. 1-169
Gatherings	{a}//6 {b}//15 {c}//14 {d}//10 {e}//8 {f}//10 {g}//8 {h}//10 {i-n}//12 {o, p}//14 with catchwords
Binding leaves	2 enclosing fly leaves
Cover	blue paperboard cover with vellum backing labeled: Trattato /di / Arsmetrica/ sec. XIV
Printed catalogs	Inventario e manoscritti della Libreria Riccardi: Manoscritti e edizione del s. XV (1810), 47 \| Lami, J.: Catalogus Codicum manuscriptorum qui in Bibliotheca Riccardiana Florentina adservantur. Livorno. 1756., 19, 43, 270-1 \| Van Egmond, W.: Practical mathematics in the Italian Renaissance: a Catalog of Italian Abbacus Manuscripts and printed Books to 1600 . Firenze: Editoriale Parenti. 1980., 149-150
Other notes	nach Lami enthält die Hs. folgende Texte: Algebra; Aritmetica, Italice; Leonardo Pisano, Aritmetica partim Italice, partim Latine, cum regulis algebrae aliisque; Leonardo Pisano, Aritmetica al modo di Pisa
Source	Inventario \| Lami \| Van Egmond
Type of source	cat.
Source’s source	insp.

Work 1	Precise date	1350
	Method of Dating	w
	Language	Italian
	No. of ms. part	I.
	Height × width	293 x 220-225
	No. of leaves	155
	Numbering	orig. in red at upper center 1-45, 46-116 on mod. ff.72-142 but erased and renumbered in black
	Watermarks	{a, d, o} fruit not in Briquet; {b} lettre A not in Briquet; {e} similar to Briquet 7346 (1338); {g} like to Briquet 14130 (1374); {h} similar to Briquet 12469 (1340); {i-n} similar to Briquet 14080 (1347-9); plus stray sheets ff. 23, 35 similar to Mosin & Traljic 1189 (1376-84); ff. 24,32 similar to Briquet 708 (1354); f.46 like to Briquet 14118 (1342-55); f.55 similar to Mosin & Traljic 2353 (1366); f.60 like to Briquet 4471 (1346-76); f.61 similar to Briquet 8928 (1370); f.71 similar to Briquet 15574, Mosin & Traljic 2449 (1375); ff.142-3 like to Briquet 7374 (1345-54)
	No. of hands	several
	Type of writing	corsiva gothica italiana; Fols. 143-155 several thick, angular Gothic hands, cursive and erect, in dark brown ink
	No. of columns	2 cols.
	Width of columns	lead-ruled approx. 230 x 70 mm.
	Lineation	38 x 6 lines starting on top rule
	Ink	brown inks
	Initials etc.	titles and paragraphs in red, capitals and initials lined in red, some initials in red, large decorated brown on red initials on 1r and 8r
	Decorations	many calculations in margins, inset calculations outlined in red on 10v-13v
Work 2	Title (standard)	Tractato dell'arismetricha
	Contents	Intro., operations (3r), misc.bus. and rec.probs. with sections on "2 positioni false"(23v), "regole della cosa"(25v), radicals (30v)
	Incipit	Nove sono le fighure dell'arismetricha cioe abbaco, le quali li savi philoxofi inventori della dicta arte trovarono,...
	No. of ms. part	I.1
	Folio no.	1r-71v
	Rubric	Al nome di dio e della beata vergine Maaria e di tucti sancti, qui comincia il tractato dell'arismetricha.
	Explicit	et partirono secondo che detto e di sopra.
Work 3	Author standard	Leonardo Pisano
	Title (standard)	Liber abbaci (frag.)
	Contents	From middle of CHap. 12, pt. 3 to beginning of Chap. 13(131v). Fols. 72r-107va are in Italian trans., thereafter is a ccopy of the Latin text
	Incipit	Item partire numero in 3 parti e m{ultipli}ce le 2 faccia come m{ultipli}ca l'alters in se.
	No. of ms. part	I.2
	Folio no.	72r-142r
	Explicit	quorum sexta pars, s{cilicet} 1/6 7, addita cum d. 20, quarti homines faciunt d. 1/6 27, qui deberent esse 21.
	Blank leaves	69r-v,142
Work 4	Precise date	1400
	Method of Dating	w
	Language	Italian
	No. of ms. part	II
	Height × width	288 x 217
	No. of leaves	14
	Gatherings	a single uneven gathering of 8 + 6 leaves (157-8 are unpaired inserts).
	Watermarks	similar to Briquet 11684 (1400)
	Type of writing	a thick, broken Gothic bookhand
	No. of columns	1 col.
	Width of columns	press-ruled 230 x 130-150 mm.
	Lineation	40-50 irreg. lines
	Ink	dark brown ink
Work 5	Title (standard)	Ragioni della lira
	Incipit	Ragioni della lira el mese presta e simile el centinaio e simigliantemente di tucte le lire prestate o vogliamo le cotante li guadagnano cotanto etceteiri.
	No. of ms. part	II.1
	Folio no.	156r-159r
	Additional texts	(159v) a sonnet in a later hand dated 1557
Work 6	Title (standard)	Regole dell'algebre
	Incipit	1. Quando le cose sono eguali al numero, dobbiamo partire el numero per le cose e quello che nne viene e numero...
	No. of ms. part	II.2
	Folio no.	160r-169r
	Explicit	ora acoça insieme R(adice) di 3 645/961 con R(adice) 800/960 fara R(adice) 8.
	Blank leaves	169v