These were previously unavailable to Europeans who for the first time had a full picture of the alchemical theory that Bacon had declared absent.
ðiːz wɜː pɹˈiːviəsli ʌnɐvˈeɪləbəl tə jˌʊɹɹəpˈiənz hˌuː fɚðə fˈɜːst tˈaɪm hæd ɐ fˈʊl pˈɪktʃɚɹ ʌvðɪ ælkˈɛmɪkəl θˈiəɹi ðæt bˈeɪkən hæd dᵻklˈɛɹd ˈæbsənt.