2228 Martin RULAND, the Elder. Progymnasmata alchemię, sive problemata chymica, nonaginta et una Quęstionibus dilucidata: cum lapidis philosophici vera conficiendi ratione... 8° Francofurti: e Collegio Musarum Paltheniano 1607 Ferguson Young British Library Wisconsin [Also contains:- 2. Appendix Quęstionum Chymicarum. 3. Lapidis Philosophici vera conficiendi ratio, gemino eruta tractatu.]