Zosimus based his work on that of older alchemical authors, such as Mary the Jewess, Pseudo-Democritus, and Agathodaimon, but very little is known about any of these authors.
zˈɑːsɪməs bˈeɪst hɪz wˈɜːk ˌɔn ðæt ʌv ˈoʊldɚɹ ælkˈɛmɪkəl ˈɔːθɚz, sˈʌtʃ ɐz mˈɛɹi ðə dʒˈuːɛs, sˈuːdoʊdˈɛməkɹˌɪɾəs, ænd ˈæɡɐθˌɑːdeɪmən, bˌʌt vˈɛɹi lˈɪɾəl ɪz nˈoʊn ɐbˌaʊt ˌɛni ʌv ðiːz ˈɔːθɚz.