Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Valentin Rose the Elder was a German pharmacist and chemist who was a native of Neuruppin. He is remembered for creation of a fusible alloy known as Rose metal, which is comprised of lead, bismuth and tin. Beginning in 1761, he was owner and manager of a laboratory and pharmacy in Berlin known as Zum WeiÃŸen Schwan (To White Swan). After his death in 1771, famed chemist Martin Heinrich Klaproth (1743â€“1817) became manager of the establishment. His son, also named Valentin Rose, was a noted pharmacist.