1. University of Pennsylvania, LJS 293 Author: Abu Bakr al-Hassar Place: Baghdad Date: A.H. 590 (1194)
2. University of Pennsylvania, LJS 37 Title: Elements Author: Euclid Place: Egypt Date: A.H. 502 (1108-1109)
3. University of Pennsylvania, LJS 459 Title: Secretum secretorum Place: Mosul Date: [between 1193 and 1211]
4. University of Pennsylvania, LJS 460 Title: Elements Author: Euclid Place: Egypt Date: A.H. 502 (1108-1109)