There are two title pages, the first noting the sponsors in Mekize Nirdamim, the second the composition of the book. There is an introduction, a letter from Moritz Steinschneider (7-23), and the text. Printed with Tagmulei ha-Nefesh is an introduction to the Moreh Nevukhim by Hillel, and three philosophical treatises on knowledge and free will; why mortality resulted from the sin of Adam; and whether or not the belief in the fallen angels is a true belief. This is the first printed edition.

R. Hillel ben Samuel (c. 1220–c. 1295) of Verona was a physician, talmudic scholar, and philosopher. Born in Naples and a resident of Capula, his association with Verona, for which he is known, appears to be limited to his grandfather, R. Eliezer ben Samuel, a tosafist, who was av bet din there. Little is known about Hillel’s personality, place of birth, or life, except that he came from a rabbinic family, and studied philosophy with R. Abraham Abulafi. He also lived in Rome, where he became friendly with R. Zerahiah ben Shealtiel Gracian and the physician Isaac ben Mordecai (Maestro Gaio), who later served as the physician of Pope Nicholas IV. Hillel played a major role in the controversies of 1289–90 concerning the philosophical works of Maimonides, writing letters in defense of Maimonides. He also translated several important medieval works from Latin into Hebrew, which served in his time as textbooks for teaching medicine.

עמ' [7-] 27: אגרת ר' משה שטיינשניידער אל המו"ל ש' ז' ח' ה'. עמ' [1-2], לג-מ: פי' הכ"ה הקדמות של המורה לר' הלל ז"ל. דף מא-מג: העתקות מחבורי ר' הלל >ע"י מש"ש [משה שטיינשניידר]<: העתקות מס' ל"ב הקדמות מתוך Pseudo-Aristoteles, Liber de causis שלמעשה אינו אלא לקט מחיבורו של פרוקלוס (אותיות יווניות) ס' כריתות מתוך Bruno de Lungoburgo, Chirurgia Magna דף מה-נב: שלשה עניינים נוספים על ס' תגמולי הנפש.