The Summa Perfectionis of Pseudo-Geber : a critical edition, translation and study / by William R. NewmanLate medieval and early modern corpuscular matter theories / ed. by Christoph Lüthy, John E. Murdoch, William R. NewmanEvidence and interpretation in studies on early science and medicine : essays in honor of John E. Murdoch / edited by Edith Dudley Sylla, William R. Newman