Reference numberMS/15
TitleArithmetica of Martianus Capella and Jordanus Nemorarius
Date13th century
DescriptionIncip. 'Igitur ex quatuor elementis'
Desin 'Et hoc est qod ostendimus. Explicit'
Folios 1-9 [Mundus] igitur ex quatuor elementis isdemque totis in spere modum globatis.... retrogradari facit.
Part of book 8, 'De astronomia' of Martinus Capella, 'De nuptiis.'

Folios 9 verso - 49 verso (Text) Vnitas est esse rei per se discrecio...omnis numerus minor maioris aut est pars aut partes....medios assignare sit possibile.
(Commentary) Aut enim minor numerat hoc est qod ostenimus. Explicit.

Jordanus Nemorariius, 'De Arithmetica' printed several times but with a different commentary. Printed marginalia eg in folio 24, in a hand which occurs also in MS/28
Extent1 volume, MS small
Physical descriptionBound volume, codex membranaceus, 51 ff, size 8.5 x 6 inches
Access statusOpen
Related materialBritish Museum, Arundel MS 200, folio 12: Magdelene College Cambridge, Pepys MS 51, 52;
J O Halliwell in 'Catalogues of the miscellaneous manuscripts and of the manuscript letters in the possession of the Royal Society' (1840) states this is a quite distinct work from the 'Jordani Arithmetica' published by Faber Stapulensis at the commencement of the sixteenth century. The only other copy known of this work is in the Savilian Library at Oxford, and the distinction between the two was first pointed out by Dr Wallis in his treatise on Algebra. The rubric in the Savilian MS is 'Algorithmus Jordani tam in integris quam in fractionibus demonstratus'.
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