A detailed letter from R Frazer to Prime Minister William Pitt proposing solutions to the constitutional and administrative problems arising from the divided sovereignty created by the 1765 Revestment. Written 22 years after the purchase, Frazer outlines the impediments caused by the Duke of Atholl's reserved rights, proposes either enhanced Duke governance or full purchase of his remaining claims, and discusses revenue improvements, smuggling suppression, and fishery bounties.