ðiːz wˈɜːks ɑːɹ ɪnðə pˈʌblɪk dəmˈeɪn bɪkˈʌz ðeɪ wɜː pˈʌblɪʃt ɪnðə juːnˈaɪɾᵻd stˈeɪts bᵻfˌoːɹ nˈaɪntiːnhˈʌndɹɪd sˈɛvənti ˈeɪt ænd ɔːlðˈoʊ ðɛɹwˌʌz ɐ kˈɑːpɪɹˌaɪt nˈoʊɾɪs, ðə kˈɑːpɪɹˌaɪt wʌz nˌɑːt ɹᵻnˈuːd.
These works are in the public domain because they were published in the United States before 1978 and although there was a copyright notice, the copyright was not renewed.