Described Hardwick & Luard: iv.66–8; C. D. Benson and L. S. Blanchfield, Manuscripts of Piers Plowman: The B-Text (Cambridge, 1997) pp. 44–8.

[1]

f. 127

Al maner of thynges that prosedeth fro the frist begynnyng thoru reson of nowbre þei where formed and riʒth as þei ar so to be knowyn and þerfor in knowyng of universall thinges the art of nounbring is profitable but frist it is to knowe what is þe name off þe art of nounbring and what nounbre is …

f. 140v

… we shal multipli 2 þat is þe halfe of þe noumber in þe progression and þe product is 20 and þat is þe hole summe of 1 4 5 10.

Arithmetical treatise which includes various mathematical tables and workings. A composite text which combines material from The Crafte of Nombrynge and The Art of Nombryng (Algorismus or De arte numerandi of Johannes de Sacro Bosco). Wells Rev. 10:3810 [217].

Other texts: No other copy of this composite text is known. Acker (1993) 75–6 lists 3 MSS of The Crafte of Nombrynge: BL Egerton 2622 ff. 136–65; New York, Columbia UL, Plimpton MS 259 ff. 57–77; untraced, olim Halliwell-Phillipps, a single folio fragment.

For The Art of Nombryng see IMEP 9 indexing BodL Ashmole 396 [2].

[2]

f. 141

Here oure intent is to schew how we shall be craft of algrym werk in fractioun or in miniscion of holle thing but or we schal shew the maner of wryking in þis craft it is nedeful to us to know certayn termys subpocisionis and reulis þat longiþ to þis craft here ben the termes …

f. 147v

… if ʒe will mediat minicion phice writt þan as it is said in duplicacion and begyn to werk at þe rith hond.

‘Here begynneþ minicioun’, a treatise on fractions. Wells Rev. 10:3810 [217].

Other texts: Apparently unique.

[3]

f. 153

Friste þis boke tellith how many heuenes þer bethe and afterwarde he pronuncythe and declared of þe cours and þe gouernaunce of þe planetys afterwarde of þe signes and sterres of þe firmament afterwarde of þe elementys and complexiouns and þe maners of man wiþout wyche science and knowynge no man may come to …

f. 156v

… stable eyne slow in goynge his chere is alwey to þe erthe he þenkyth moste on erthely þingis blake cloþinge he loueth moste.