Pretiosa margarita novella Petrus Bonus

Crisciani, Chiari. The conception of alchemy as expressed in the Pretiosa Margarita Novella of Petrus Bonus of Ferrara. Ambix 20, no. 3 (Nov 1973) 165-181. 

An important writer of this period is Petrus Bonus, who is known through a book which bears the title Petrus Bonus of Ferrara, Physicus. Introduction to the Arts of Alchemy. Composed in 1330 in the City of Pola in Istria. A Precious New Pearl (Pretiosa Margarita Novella). 26 The date 1330 is repeated at the end of the work, though 1339 is stated in the preceding paragraph as the date of completion of the work. 

Indeed, Bonus included Moses, David, Solomon, and John the Evangelist among the founders of alchemy. Chiara Crisciani, "The Conception of Alchemy as Expressed in the Pretiosa margarita novella of Petrus Bonus of Ferrara," Ambix 20, no. 3 (1973) 173 and 71 n. 26. 

Pretiosa margarita novella, 50b, as quoted in ibid., 172 n. 28. For more on Petrus Bonus and his role in the art-nature debate, see also William R. Newman, Promethean Ambitions Alchemy and the Quest to Perfect Nature (Chicago University of Chicago Press, 2004), 83-89. 

Pretiosa Margarita Novella of Petrus Bonus of Ferrara, Ambix 20 165-181. 

Italy Petrus Bonus Pretiosa Margarita Novella... 

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