Isochronic Passage Chart for Travellers

"Isochronic Passage Chart for Travellers, showing the shortest number of days journey from London by the quickest through routes and using such further conveyances as are available without unreasonable cost. It is supposed that local preparations have been made and that other circumstances are favorable. By Francis Galton, F.R.S."

Published for the Proceedings of the Royal Geographical Society [November] 1881.

Ref.: S0011891