In addition, there were instructions on producing the quintessence (or aether), an elixir which was believed to be able to heal all sicknesses, defend against diseases, and perpetuate youthfulness.
ɪn ɐdˈɪʃən, ðɛɹwˌɜːɹ ɪnstɹˈʌkʃənz ˌɔn pɹədˈuːsɪŋ ðə kwˈɪntɛsəns ɔːɹ ˈiːθə, ɐn ᵻlˈɪksɚ wˌɪtʃ wʌz bᵻlˈiːvd təbi ˈeɪbəl tə hˈiːl ˈɔːl sˈɪknəsᵻz, dᵻfˈɛnd ɐɡˈɛnst dɪzˈiːzᵻz, ænd pɚpˈɛtʃuːˌeɪt jˈuːθfəlnəs.