text_original: The only difficulty attend  ing their use was, that they were apt to melt unless great caution was used in heating them. Dr. Wollaston introduced crucibles of platinum about the beginning of the present century. It is from that period that we may date the commencement of accurate analyzing.
text_transcription: THE ONLY DIFFICULTY ATTENDING THEIR USE WAS THAT THEY WERE APT TO MELT UNLESS GREAT CAUTION WAS USED IN HEATING THEM DOCTOR WALLACE INTRODUCED CRUCIBLES OF PLATINUM ABOUT THE BEGINNING OF THE PRESENT CENTURY IT IS FROM THAT PERIOD THAT WE MAY DATE THE COMMENCEMENT OF ACCURATE ANALYZING
phonemes: ðɪ ˈoʊnli dˈɪfɪkˌʌlti ɐtˈɛnd ˈɪŋ ðɛɹ jˈuːs wʌz, ðæt ðeɪ wɜːɹ ˈæpt tə mˈɛlt ʌnlˈɛs ɡɹˈeɪt kˈɔːʃən wʌz jˈuːzd ɪn hˈiːɾɪŋ ðˌɛm. dˈɑːktɚ. wˈoʊlæstən ˌɪntɹədˈuːst kɹˈuːsᵻbəlz ʌv plˈætɪnəm ɐbˌaʊt ðə bɪɡˈɪnɪŋ ʌvðə pɹˈɛzənt sˈɛntʃɚɹi. ɪɾ ɪz fɹʌm ðæt pˈiəɹɪəd ðæt wiː mˈeɪ dˈeɪt ðə kəmˈɛnsmənt ʌv ˈækjʊɹət ˈænɐlˌaɪzɪŋ.