S. Th. S?mmerring ?ber die Wirkungen der Schn?rbr?ste. This book, "Wirkungen der Schn?rbr?ste", by Samuel Thomas von Soemmerring, is a replication of a book originally published before 1793. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible.