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Cambridge, Trinity College MS. R.1.66.
39 folios. Vellum. 190x130mm. In marbled paper boards ticketed 'ars quaedam, MS. xi'. 15th Century, written in France.
Raymundi Lulli. Ars Demonstratiua.
[f1v, iir have a number of dials with writing in red, blue, green and yellow. The inscriptions are of various kinds: one has the name of virtues and vices, another such words as miseria, ominium, bonitas, magnitudo, eternitas; another, actus, memoria, voluntas, etc. There are many step-shaped diagrams inscribed in various colours.]