text_original: When he began his labours, chemists were not acquainted with the true com  position of a single mineral. He analyzed above 200 species, and the greater number of them with so much accuracy, that his suceesaora have, in most cases, confirmed the results which he obtained.
text_transcription: WHEN HE BEGAN HIS LABORS CHEMISTS WERE NOT ACQUAINTED WITH THE TRUE COMPOSITION OF A SINGLE MINERAL HE ANALYZED ABOVE TWO HUNDRED SPECIES AND THE GREATER NUMBER OF THEM WITH SO MUCH ACCURACY THAT HIS SUCCESSORS HAVE IN MOST CASES CONFIRMED THE RESULTS WHICH HE OBTAINED
phonemes: wˌɛn hiː bɪɡˈæn hɪz lˈeɪbɚz, kˈɛmɪsts wɜː nˌɑːt ɐkwˈeɪntᵻd wɪððə tɹˈuː kˈɑːm pəzˈɪʃən əvə sˈɪŋɡəl mˈɪnɚɹəl. hiː ˈænɐlˌaɪzd əbˌʌv tˈuːhˈʌndɹɪd spˈiːsiːz, ænd ðə ɡɹˈeɪɾɚ nˈʌmbɚɹ ʌv ðˌɛm wɪð sˈoʊ mˌʌtʃ ˈækjʊɹəsi, ðæt hɪz sˌuːsiːseɪˈɔːɹə hˈæv, ɪn mˈoʊst kˈeɪsᵻz, kənfˈɜːmd ðə ɹɪzˈʌlts wˌɪtʃ hiː əbtˈeɪnd.