Public domain. Cover image from Project Gutenberg ebook #66756. Dalrymple's Equation by Paul W. Fairman Chapters (2) 1 Dalrymple's Equation 0:002 Dalrymple's Equation: By Paul W. Fairman 0:12 Download .m4b · 24 MB How to listen → · Problem with this narration? Let us know → Narrator Arthur — English RP Narrator (en-GB) Length 24 min Language English Added November 8, 2026 Source ebook Project Gutenberg License Public domain FictionMysteryScience Fiction