Das “Buch über das Geheimnis der Schöpfung” von Pseudo-Apollonios von Tyana

special wisdom from the Ruler of the world". A German Foreword (i-xii) is followed by an Introduction (pp. 1-56, numerals in English). Weisser discusses briefly problems related to Sirr al-khalTqa, and gives a detailed description and an appraisal of sixteen Arabic manuscripts, from which she selected four in order to establish the Arabic text. This Introduction also provides footnotes and an extensive bibliography (pp. 57-66); all this section is in manuscript. Weisser quotes from Julius Ruska that this book, Sirr al-khatiqa, is the oldest Arabic text that has preserved the alchemical work entitled "Lawh al-zumurrud" (Tabula Smaragdina). One would have liked to have seen all this book properly printed, especially as previous Arabic publications of Aleppo Institute for the History of Arabic Science have proved to be of a high standard. A. Z. Iskandar Wellcome Institute