Public domain. Cover image from Project Gutenberg ebook #70955. Daedalus auctore J. B. S. Haldane Detrahe .m4b · 66 MB Quomodo audiendum → · Problema cum hac recitatione? Animadversionem mitte → Recitator Arthur — English RP Narrator (en-GB) Diuturnitas 1 hr 3 min Lingua English Additum November 5, 2026 Liber electronicus originalis Project Gutenberg Licentia Public domain NonfictionPhilosophy