CHRISTIAN, born at Frustenwall in the Mittel-mark, is celebrated for his skill in medicine and botany, in pursuit of which he travelled through many countries. He had correspondents in the most distant parts of the world. He died A.D. 1701 about the 70th year of his age. He was a member of the academy des Curieux de la Nature. His works are,

1. Index nominum plantarum, printed at Berlin in folio, 1696; and reprinted with additions in 1715, under the title of Lexicon plantarum polyglotton universale.

2. A Chronology of China, in German, printed at Berlin 1696, in 4to. The following manuscripts of his composition are preserved in the royal library at Berlin.

1. Sur l'Histoire Naturelle du Brasil, in four volumes folio.

2. Sur les Fleurs et les Plantes du Japon, with coloured plates, two vols folio.