text_original: His analyses of SI6 STSTOBT OF CBEHISTBT. ' the arseniates of copper, though he demonstrated that several different species exist, are not so much to be depended on ; because his method of sepa  rating and estimating the quantity of arsenic acid is not good. This difficult branch of analysis was DOt fully understood till afterwards.
text_transcription: HIS ANALYSSES OF THE ARSENIUS OF COPPER THOUGH HE DEMONSTRATED THAT SEVERAL SPECIES EXIST ARE NOT SO MUCH TO BE DEPENDED ON BECAUSE HIS METHOD OF SEPARATING AND ESTIMATING THE QUANTITY OF ARSENIC ACID IS NOT GOOD THIS DIFFICULT BRANCH OF ANALYSIS WAS NOT FULLY UNDERSTOOD TILL AFTERWARDS
phonemes: hɪz ɐnˈæləsˌiːz ʌv sˈiː sˈɪks ˌɛstˈiːstˈɑːbt ʌv sˈiːbᵻhˈɪstbt. ðɪ ɑːɹsˈiːnɪˌeɪts ʌv kˈɑːpɚ, ðˌoʊ hiː dˈɛmənstɹˌeɪɾᵻd ðæt sˈɛvɹəl dˈɪfɹənt spˈiːsiːz ɛɡzˈɪst, ɑːɹ nˌɑːt sˈoʊ mˌʌtʃ təbi dᵻpˈɛndᵻd ˈɔn ; bɪkˈʌz hɪz mˈɛθəd ʌv sˈɛpɚ ɹˈeɪɾɪŋ ænd ˈɛstᵻmˌeɪɾɪŋ ðə kwˈɔntᵻɾi ʌv ˈɑːɹsnɪk ˈæsɪd ɪz nˌɑːt ɡˈʊd. ðɪs dˈɪfɪkəlt bɹˈæntʃ ʌv ɐnˈæləsˌɪs wʌz dˈɑːt fˈʊli ˌʌndɚstˈʊd tˈɪl ˈæftɚwɚdz.