xxxvi, xxxvii; see also Hallam, Middle Ages, chap.

ix.
For dealings of Pope John XXII, of the Kings of France and England, and of the Republic of Venice, see Figuier, L'Alchimie et la Alchimistes, pp.

140, 141, where, in a note, the text of the bull Spondet paritur is given.

For popular legends regarding Albert and St.Thomas, see Eliphas Levi, Hist.

de la Magie, liv.