text_original: They were always provided with slabs of a fine plastic clay, carefully mixed and kept sufiiciently moist to take easily the impression of an ob  ject, but at the same time sufficiently firm to prevent the marks once made from becoming either blurred or effaced.
text_transcription: THEY WERE ALWAYS PROVIDED WITH SLABS OF A FINE PLASTIC CLAY CAREFULLY MIXED AND KEPT SUFFICIENTLY MOIST TO TAKE EASILY THE IMPRESSION OF AN OBJECT BUT AT THE SAME TIME SUFFICIENTLY FIRM TO PREVENT THE MARKS ONCE MADE FROM BECOMING EITHER BLURRED OR EFFACED
phonemes: ðeɪ wɜːɹ ˈɔːlweɪz pɹəvˈaɪdᵻd wɪð slˈæbz əvə fˈaɪn plˈæstɪk klˈeɪ, kˈɛɹfəli mˈɪkst ænd kˈɛpt sˈuːfɪˌɪʃəntli mˈɔɪst tə tˈeɪk ˈiːzili ðɪ ɪmpɹˈɛʃən əvən ˈɑːb dʒˈɛkt, bˌʌt æt ðə sˈeɪm tˈaɪm səfˈɪʃəntli fˈɜːm tə pɹɪvˈɛnt ðə mˈɑːɹks wˈʌns mˌeɪd fɹʌm bᵻkˈʌmɪŋ ˈiːðɚ blˈɜːd ɔːɹ ɪfˈeɪst.