The New Physics and Its Evolution: Free Audiobook and Listening Guide
The New Physics and Its Evolution by Lucien Poincaré: the LibriVox audiobook summary, 17 original MP3 tracks, 8:52:46 running time and a link to listen.
#early 20th century
2 articles
The Long, Long Trail: Free Audiobook and Listening Guide
The Long, Long Trail by Max Brand: the LibriVox audiobook summary, 22 original MP3 tracks, 7:23:23 running time and a link to listen.