FOOTNOTES
[1042] [Several localities are now known for this peculiar variety of heavy spar; among others we may mention Amberg in the Upper Palatinate, and near Osterode in the Harz mountains.]
[1043] Geschichte von Flötz-Gebürgen. Berl. 1756, 8vo.
[1044] Mineral System. Leip. 1762, 8vo.
[1045] Syst. Mineral. 1772, 8vo, i. p. 162.
[1046] [In preparing solar phosphorus from the Bolognian stone, it should be carefully separated from any contamination of iron or other heavy metals, formed into a paste as above-described, and exposed to the heat of a wind-furnace for an hour or two.]
[1047] Fortunii Liceti Litheosphorus, sive de lapide Bononiensi. Utini 1640, 4to, p. 13. He calls the shoemaker Casciorolus, which seems to be wrong, as Lemery and others write his name Cascariolo. Licetus refers to the letters of Ovidio Montalbani. Epist. var. ad Eruditos viros de Rebus in Bononiensi tractu indigenus, ut est lapis Illuminabilis et lapis specularis, calamonastos, &c., Bonon. 1634, 4to. Among the oldest accounts are those in Petri Poterii Pharmacopœia spagyrica, ii. 27, in Opera, Fran. 1698, 4to. In this work the alchemist is called Scipio Bagatellus, a name which does not occur in Fantuzzi, Notizie degli scrittori Bolognesi.
[1048] An. 1666, n. 21, p. 375.
[1049] Mémoires des Hommes Illustres.
[1050] Cours de Chymie. Dresd. 1734, 8vo.
[1051] Magnes, p. 481.
[1052] De Igne. Franc. 1688, 4to, p. 350.
[1053] Marggrafs Chymische Schriften, ii. p. 119. This author says the cakes must be only as thick as the back of a knife; but that which I obtained in the year 1782 from Bologna, was an inch English measure in diameter, and two lines in thickness. It still weighs, after the brass box in which I long preserved it between cotton in a luminous state, has become black, and itself has lost its virtue, three drachms. In colour it has a perfect resemblance to the star which Marggraf prepared from German stones, and presented to Professor Hollman, and which is now in my possession. It is contained in a capsule of tin plate, over which a piece of glass is cemented.
[1054] Ferber’s Briefe aus Wälschland, p. 75.
[1055] Polyhist. i. 1, 13, 26, p. 127.