During this time the only British losses were three vessels sunk; and their very names indicate the {212} extent and variety of the marine resources that were to prove our salvation. The armed yacht _Sanda_, the pleasure steamer _Brighton Queen_, once so often thronged with cross-channel trippers, and the drifter _Great Heart_--these were the first casualties of the Dover Patrol. That they were so few was due in large measure to the vigilance and seamanship of three men, of Commodore C. D. Johnston in command of the Dover destroyers; of Captain P. G. Bird in charge of the drifters; and of Commander W. Rigg, who was chiefly responsible for the early organization of the mine-sweepers; while to Wing-Commander Longmore of the Dunkirk aerodrome must be assigned much of the credit for checking the enemy's aircraft. Had they not been supported, however, by the cheerful fidelity and amazing competence of their subordinates, they could have achieved but little as was generously recognized by Vice-Admiral Bacon in his first official despatch. "Their Lordships will appreciate," he wrote, "the difficulties attendant on the cruising in company by day and night under war conditions of a fleet of eighty vessels comprising several widely different classes, manned partly by trained naval ratings, but more largely by officers of the naval reserve, whose fleet training has necessarily been scant, and by men whose work in life has hitherto been that of deep sea fishermen. The protection of such a moving fleet by the destroyers in waters which are the natural home of the enemy's submarines, has been admirable, and justifies the training and organization of the _personnel_ of the flotilla. But more remarkable still, {213} in my opinion, is the aptitude shown by the officers and crews of the drifters and trawlers, which, in difficult waters, under conditions totally strange to them, have maintained their allotted stations without a single accident. Moreover, these men under fire have exhibited a coolness well worthy of the _personnel_ of a service inured by discipline. The results show how deeply sea adaptability is ingrained in the seafaring race of these islands."