His Summa Perfectionis remained a staple summary of alchemical practice and theory through the medieval and renaissance periods.
hɪz sˈʌmə pɚfˈɛkʃənˌɪs ɹᵻmˈeɪnd ɐ stˈeɪpəl sˈʌmɚɹi ʌv ælkˈɛmɪkəl pɹˈæktɪs ænd θˈiəɹi θɹuː ðə mˈɛdɪˌiːvəl ænd ɹˈɛnəsˌɑːns pˈiəɹɪədz.