text_original: Berthier has proposed to sub  stitute oxide of lead for carbonate of barytes. It answers very well, is sufficiently cheap, and does sot injure the crucible, provided the oxide of lead be mixed previously with a little nitrate of lead, to oxidize any fragments of metallic lead which it may happen to contain.
text_transcription: BERTHIER HAS PROPOSED TO SUBSTITUTE OXIDE OF LEAD FOR CARBONATE OF BERITES IT ANSWERS VERY WELL IS SUFFICIENTLY CHEAP AND DOES NOT INJURE THE CRUCIBLE PROVIDED THE OXIDE OF LEAD BE MIXED PREVIOUSLY WITH A LITTLE NITRATE OF LEAD TO OXIDIZE ANY FRAGMENTS OF METALLIC LEAD WHICH IT MAY HAPPEN TO CONTAIN
phonemes: bˈɜːðiɚ hɐz pɹəpˈoʊzd tə sˈʌb stˈɪɾuːt ˈɑːksaɪd ʌv lˈiːd fɔːɹ kˈɑːɹbənˌeɪt ʌv bˈæɹaɪts. ɪɾ ˈænsɚz vˈɛɹi wˈɛl, ɪz səfˈɪʃəntli tʃˈiːp, ænd dˈʌz sˈɑːt ˈɪndʒɚ ðə kɹˈuːsᵻbəl, pɹəvˈaɪdᵻd ðɪ ˈɑːksaɪd ʌv lˈiːd biː mˈɪkst pɹˈiːviəsli wɪð ɐ lˈɪɾəl nˈaɪtɹeɪt ʌv lˈiːd, tʊ ˈɑːksɪdˌaɪz ˌɛni fɹˈæɡmənts ʌv mətˈælɪk lˈiːd wˌɪtʃ ɪt mˈeɪ hˈæpən tə kəntˈeɪn.