Smith directed a shot to be fired at a French frigate which, on passing, had neglected to pay the usual compliment to the flag. The Frenchman considering this as an insult offered to his flag, lodged a complaint against Mr Smith, who was tried by a court-martial and dismissed the service. His spirited conduct was, however, so much approved of by the nation, that he was promoted at once to the rank of post-captain. In 1749 an Act of Parliament was passed authorising the Admiralty to grant commissions to flag-officers or any other officer commanding his majesty's fleet or squadron of ships of war, to call and assemble courts-martial in foreign parts. The sudden possession of wealth by the capture of prizes had undoubtedly a deteriorating effect on the minds of many officers of the navy. We may understand the disappointment which was felt by those serving under Admiral Knowles, who was cruising off the Havannah to intercept the expected Plate fleet, when a Spanish advice-boat brought into the squadron informed the admiral that the preliminary articles for a general peace were signed. The unpleasant news caused a general dejection throughout the whole squadron. Dissensions among the officers had for some time before prevailed, and these at length terminated in various courts-martial. It was probably this lust of wealth which induced the officers of the _Chesterfield_, of 40 guns, commanded by Captain O'Brien Dudley, when off Cape Coast Castle, to mutiny. Samuel Couchman, the first lieutenant, John Morgan, the lieutenant of marines, Thomas Knight, the carpenter, were the ringleaders. They managed to seize the ship and carry her to sea while the captain and some others were on shore. By the spirited conduct of Mr Gastrien, the boatswain, and Messrs Gillan and Fraser, she was retaken from the mutineers thirty hours afterwards, and ultimately brought safe to Portsmouth, where the mutineers being tried, two of the principal officers were shot on board their ship. The four others and one seaman were hanged. The animosity which had existed among the captains of the West India squadron was carried to serious lengths, and resulted in several duels, one of which was fought between Captains Clarke and Innes, in Hyde Park, when the latter was killed. Captain Clarke was tried, and received sentence of death, but his majesty granted him a free pardon. Another duel was fought between Admiral Knowles and Captain Holmes. After they had discharged two or three shots at each other, the seconds interfered, and they were reconciled. The king being informed that four more challenges had been sent to the admiral, ordered three of the officers to be taken into custody, which put an end to all further dissensions. In 1753 an Act was passed to render more effectual the Act of the 12th of Queen Anne, for providing a public reward for such person or persons as should discover the longitude at sea.