Breve breviarium

The omission of the other names is significant, as works of alchemical nature attributed to those men were at later dates very much esteemed, on account of the high reputation of the men as scholars and it seems safe to infer that if works like the Libellus de Alchemia, etc., attributed to Albertus, or the Speculum, Alchemiae, Breve Breviarium de Bono Dei, De Arte Chemiae, credited to Roger Bacon, or the various alchemical works credited to Arnaldus of Villanova, were then extant, that so conscientious a student of authorities as Petrus Bonus would not have been likely to have omitted them. 

For the inauthenticity of the Breve breviarium, see Newman, Technology and Alchemical Debate, 441 n. 57. 

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