Phillipps, Bart., in 1826); Johann Kunkel, Vollstandige Glasmacher-Kunst (Nuremberg, 1785); Apsley Pellatt, Curiosities of Glass-making (London, 1849); A.
Kunkel, who was director of the glass-houses at Potsdam in 1679, of the method of making copper-ruby glass.
KUNKEL (or KUNCKEL) VON LOWENSTJERN, JOHANN (1630-1703), German chemist, was born in 1630 (or 1638), near Rendsburg, his father being alchemist to the court of Holstein.
Kunkel shares with Boyle the honour of having discovered the secret of the process by which Brand of Hamburg had prepared phosphorus in 1669, and he found how to make artificial ruby (red glass) by the incorporation of purple of Cassius.
Kunkel to have been known as an arcanum or secret medicine to the electoral house of Saxony in the middle of the 16th century, but it was first described by J.