British Library MS. Sloane 2416. Paper. Folio. 132 folios. Written in 1446. 1. 'Ars magna Magistri Raymundi Lullii.' ff.1-123. Printed among the Works of Lully, in quarto, Argent. 1617, p.218. 2. 'Ars brevis Raymondi Lullii'. ff.124-132. [Printed, ibid. p.1.]