‎"GLAUBER, (JOHANN RUDOLF).‎
‎Glauberus Concentratus, Oder Kern der Glauberischen Schrifften, Worinnen alles unnöthige Streit=Wesen weggelassen, was nutzbar ist, in die Enge gezogen, und was undeutlich oder verstecket, so viel möglich klar gemacht, und in Form eines begreifflichen...‎

‎Leipzig und Bresslau, Michael Hubert, 1715. 4to. Cont. hcalf. Richly gilt back. Titlelabel in leather. Top of spine repaired. Lightly rubbed. Corners a bit bumped. Titlepage in red/black. 862 pp and some woodcut illustrations in the text. Leaves with browning, due to the rather poor paperquality.‎

Reference : 26431

‎Scarce German edition of this collection of Glaubers main works in chemistry, alchymy etc. He was certainly one of the most remarkable chemists of the seventeenth century. ""Glaubers interest in the transmutation of metals and in industrial chemistry (e.g. his Glauber-salt) distinguished him from Paracelsus and other iatrochemists, who were more narrowly concerned with the preparation of chemical medicine. In the most general sense Glauber sought to perfect nature for the enchancement of human life - to render useless things useful through the release of their hidden virtues. Such changes were effected in his laboratory primarely through the ""ripening"" powers of salt...Glauber prepared his ""Most secret salt"" by combining ammonia and salpeter, made from excrements and urine"" (DSB). - Ferguson I:p. 328.‎