Marcellus (called Marcellus Empiricus). De Medicamentis, in the volume Medici antiqui omnes (Venet., 1547, p. 89).
Arnaldus (Arnaldus de Villa Nova). Incipit Tractatus de virtutibus herbarum (Venet., 1499). See also Arnaldi Villanovani Opera omnia (Basil., 1585).
Marbodeus Gallus. Marbodei Galli poetae vetustissimi de lapidibus pretiosis Enchiridion (Friburgi, 1530 [1531], p. 41).
Albertus Magnus. De Mineralibus et rebus metallicis (Venet., 1542, lib. ii., de lapidibus preciosis, p. 192). There is a reference to the loadstone
also in a work attributed falsely to Albertus, but now ascribed to Henricus de Saxonia, De virtutibus herbarum, de virtutibus lapidum, etc. (Rouen, 1500, and subsequent editions). An English version, The Secrets of Albertus Magnus of the vertues of hearbs stones and certaine beasts was publisht in London in 1617.
Matthæus Silvaticus. Pandectæ Medicinæ (Lugduni, 1541, cap. 446).
Hermolaus Barbarus. His work, Hermolai Barbari Patritii Veneti et Aqvileiensis patriarchæ Corollarii Libri quinque ... Venet., 1516, is an early herbal. On p. 103 are to be found descriptions of lapis gagatis and lapis magnes. The latter is mostly taken from Pliny, and mentions the alleged theamedes, and the myth of the floating statue.
Camillus Leonardus. Speculum Lapidum (Venet., 1502, fol. xxxviii.). An English translation, The Mirror of Stones, appeared in London in 1750.
Cornelius Agrippa. Henrici Cor. Agrippæ ab Nettesheym ... De Occulta Philosophia Libri Tres (Antv., 1531). The English version Of the Vanitie and uncertaintie of Artes was publisht in London, 1569, and again later.
Fallopius (Gabriellus). G. F. de simplicibus medicamentis purgantibus tractatus (Venet., 1566). See also his Tractatus de compositione medicamentorum (Venet., 1570).