Oxford, Bodleian Library MS. Digby 133. 169 folios. 15th-17th Centuries. 2. 'Radix Mundi'; a treatise of the work of the Philosophers' stone, by Roger Bacon, in fifteen chapters; 'finished and translated out of Lattin by Robert Freeelove, of London, mercer, the 16th of Februarii, ao, 1550'. f.22-37.