British Library MS. Sloane 3164. Paper. Quarto. 40 folios. 17th Century. 1. 'The thirde booke of Naturall Philosophie, written by John Baptiste Porta, of Naples'. ff.1-16. An English translation by F.O., of Porta's Magia Naturalis. The original in Latin was printed at Antwerp, 0ctavo, 1561.