[1493] How early manufactories for blue paint were erected beyond the boundaries of Saxony and Bohemia I do not know, as I have found no information on that subject. We are however told by Calvor, in Beschreibung des Maschinenwesens am Oberharze, ii. p. 202, that a person was engaged to superintend the blue-paint-manufactory at St. Andreasberg in the year 1698.
[1494] Meisnische Bergchronik, p. 133, tit. 16.
[1495] Lib. v. De Subtil.
[1496] Lib. ii. cap. 55.
[1497] Magiæ Naturalis lib. vi.
[1498] De Arte Vitriaria. Amst. 1668, 12mo, lib i. cap. 12, p. 32.
[1499] Ibid. p. 327.
[1500] Glasmacherkunst. Nurnb. 1743, 4to, p. 46.
[1501] Act. Lit. et Scient. Upsal, 1733. Wallerii Syst. Min. ii. p. 164.