The third volume of a four-volume published collection of correspondence between Richard Grenville (Earl Temple) and George Grenville, along with letters from their friends and contemporaries. This volume covers 1765–1766 and includes extensive correspondence on parliamentary business, ministerial crises, the Stamp Act crisis in America, East India Company affairs, and notably includes a letter dated March 5, 1765 from George Grenville to the King on the purchase of the Isle of Man from the Duke of Atholl. The collection includes Grenville's personal diary of memorable transactions.