Petuntse (白墩子 in pinyin: bai2 dun1 zi0), also spelled petunse, also known as china stone, is a granite-derived feldspar. It is one of the two ingredients used in making chinas[?] (the other ingredient being kaolin).
... Poesie and ihre Geschichte (1885)
Studien (1839-47)
Neue Studien (1875-78).
He published also an autobiography entitled Von Magdeburg nach Königsberg (1873), ...