Title: Joh. Joachimi Beccheri, D. Spirensis Germani Sacr. Caes. Majest. Consil. & Med. Elect. Bav. physica subterranea, profundam subterraneorum genesin, è principiis hucusque ignotis, ostendens
Subjects: Phlogiston, Early works to 1800, Alchemy