A History of Magic and Experimental Science, Volume 1 (of 2)Note 3000 — Chapter XXXII · CONSTANTINUS AFRICANUS: C. 1015-1087.Reading editionPractica, X, 1; in Isaac, Opera, 1515, II, fol. 126.◇Copy noteReturn to CHAPTER XXXII CONSTANTINUS AFRICANUS: C. 1015-1087.