London, Wellcome Institute MS. 1903. 250 + 228 pages. 150x85mm. 17th Century [c. 1665.] p13-25 [Introductory verses by the author.] p25-250 Crassellame, Marco Antonio. Lux obnubilata, suapte Natura refulgens. Vera de Lapide Philosophico p1-Theorica, metro Italico descripta, et ab Auctore innominato Commenti gratia ampliata [Johannes Florentinus] Liber Magistri Artis Generalis Floerentiae de compositione et operatione magni lapidis p195-end De lapide minerali. [Although the titles are in Latin , these works are in Italian throughout.]