text_original: The most suitable for this is a mineral salt, such as alum or vitriol; vegetable salts, such as potash, dissolve readily in a moist air and make marks or spots in the books.
text_transcription: THE MOST SUITABLE FOR THIS IS A MINERAL SALT SUCH AS ALUM OR VITRIOL VEGETABLE SALT SUCH AS POTASH DISSOLVE READILY IN THE MOIST AIR AND MAKE MARKS OR SPOTS IN THE BOOKS
phonemes: ðə mˈoʊst sˈuːɾəbəl fɔːɹ ðɪs ɪz ɐ mˈɪnɚɹəl sˈɔlt, sˈʌtʃ ɐz ˈæləm ɔːɹ vˈɪtɹiːəl; vˈɛdʒɪɾəbəl sˈɔlts, sˈʌtʃ ɐz pˈɑːɾæʃ, dɪsˈɑːlv ɹˈɛdili ɪn ɐ mˈɔɪst ˈɛɹ ænd mˌeɪk mˈɑːɹks ɔːɹ spˈɑːts ɪnðə bˈʊks.