The boundary dispute between Chile and Argentina

In November 1920, James Young Simpson, Professor of Natural Science in New College, Edinburgh and Trinity College, Glasgow, was invited by the governments of Latvia and Lithuania to chair a commission which would settle the disputed border between the two newly‐independent states. Upon his return to Edinburgh in May 1921, Simpson deposited the papers and final report on the commission's decision with the Royal Scottish Geographical Society, of which he was an active member. This article will explain why and how Simpson came to be involved in diplomatic decisions so remote from his home life and work, and will analyse the significance of the results of Simpson's efforts on the arbitration commission.