Public domain. Cover image from Project Gutenberg ebook #77610. The color of space auctore Charles R. Tanner Detrahe .m4b · 10 MB Quomodo audiendum → · Problema cum hac recitatione? Animadversionem mitte → Recitator Arthur — English RP Narrator (en-GB) Diuturnitas 10 min Lingua English Additum November 2, 2026 Liber electronicus originalis Project Gutenberg Licentia Public domain