[95] PAGE 34, LINE 38.: Page 34, line 40. _electuarium de scoria ferri descriptum à Raze._--Rhazes or Rasis, whose Arabic name was Muhammad Ibn Zakar[=i]y[=a], wrote _De Simplicibus, ad Almansorem._ In Chap. 63 of this work he gives a recipe for a stomachic, which includes fennel, anise, origanum, black pepper, cinammon, ginger, and iron slag. In the splendid folio work of Rhazes publisht at Venice in 1542, with the title _Habes candide lector Contin[~e]tem Rasis_, Libri ultimi, cap. 295, under the heading _De Ferro,_ are set forth the virtues of iron slag: "Virtus scorie est sicut virtus scorie [a]eris sed debilior in purgãdo: et erugo ferri est stiptica: et c[~u] superpositur retinet fluxus menstruor[~u].... Ait Paulus: aqua in qua extinguitur ferr[~u] calens.... Dico: certificatus sum experientia [~q] valet contra emorryodas diabetem et fluxum menstruorum." [96] PAGE 35, LINE 16.: Page 35, line 13. _Paulus._--This is not Fra Paolo Sarpi, nor Marco Polo, nor Paulus Jovius the historian, nor Paulus Nicolettus Venetus, but Paulus Aeginæ. [97] PAGE 35, LINE 29.: Page 35, line 28. _Sed malè Avicenna._--The advice of Avicenna to administer a draught containing powdered loadstone, reads as follows in the Giunta edition (Venice, 1608): Lib. ii., cap. 470, p. 356. "Magnes quid est? Est lapis qui attrahit ferrum, quum ergo aduritur, fit hæmatites, & virtus ejus est sicut virtus illius.... Datur in potu [ad bibitionem limaturæ ferri, quum retinetur in ventre scoria ferri. Ipse enim extrahit] ipsam, & associatur ei apud exitum. Et dicitur, quando in potu sumuntur ex eo tres anulusat cum mellicrato, educit solutione humorem grossum malum." The passage is identical with that in the Venetian edition of 1486, in both of which the liquid prescribed is mellicratus--mead. Gilbert says that the iron is to be given in juice of _mercurialis_. Here he only follows Matthiolus, who, in his _Commentaries on Dioscorides_, says (p. 998 of the Basil. edition of 1598): "Sed (vt idem Auicenna scribit) proprium hujusce ferrei pharmaci antidotum, est lapis magnes drachmæ pondere potus, ex mercurialis, vel betæ succo." Serapio, in his _De Simplicibus Medicinis_ (Brunfels' edition, Argentorati, 1531), p. 264, refers to Galen's prescription of iron scoriæ, and under the article _de lapide magnetis_, p. 260, quotes Dioscorides as follows: "Et uirtus huius lapidis est, ut quãdo dantur in potu duo onolosat ex eo c[~u] melicrato, laxat humores grossos." The original passage in Dioscorides, _De Materia Medica,_ ch. 147 (Spengel's edition of 1829) runs: "[Greek: Tou de magnêtou lithou aristos estin ho ton sidêron eucherôs helkôn, kai tên chroan kuanizôn, puknos te kai ouk agan barus. Dunamin de echei pachous agôgon didomenos meta melikratou triôbolou baros; enioi de touton kaiontes anti haimatitou pipraskousin.]." In the Frankfurt edition of Dioscorides, translated by Ruellius (1543), the passage is: