The triumph in the Mediterranean was, however, only a set-off to a disaster which had occurred more than five weeks previously in the Atlantic. The Russian fleet, which had broken the blockade of the Sound, with the assistance of the _Lucifer_, had, after coaling at Aberdeen, made its way into the Atlantic, and there, in conjunction with the Franco-Italian fleets operating along the Atlantic steamer route, had, after a series of desperate engagements, succeeded in breaking up the line of British communication with America and Canada. This result had been achieved mainly in consequence of the contrast between the necessary methods of attack and defence. On the one hand, Britain had been compelled to maintain an extended line of ocean defence more than three thousand miles in length, and her ships had further been hampered by the absolute necessity of attending, first, to the protection of the Atlantic liners, and, secondly, to warding off isolated attacks which were directed upon different parts of the line by squadrons which could not be attacked in turn without breaking the line of convoy which it was all-essential to preserve intact. For two or three weeks there had been a series of running fights; but at length the ocean chain had broken under the perpetual strain, and a repulse inflicted on the Irish Squadron by a superior force of French, Italian, and Spanish warships had settled the question of the command of the Atlantic in favour of the League. The immediate result of this was that food supplies from the West practically stopped. Now and then a fleet Atlantic greyhound ran the blockade and brought her priceless cargo into a British port; but as the weeks went by these occurrences became fewer and further between, till the time news was received in London of the investment of the fortresses of the Quadrilateral by the innumerable hosts of the League, brought together by the junction of the French and Russian Armies of the North and the conquerors of Vienna and Constantinople, who had returned on their tracks after garrisoning their conquests in the East. Food in Britain, already at war prices, now began to rise still further, and soon touched famine prices. Wheat, which in the last decade of the nineteenth century had averaged about £9 a ton, rose to over £31 a ton, its price two years before the Battle of Waterloo. Other imported food-stuffs, of course, rose in proportion with the staple commodity, and the people of Britain saw, at first dimly, then more and more clearly, the real issue that had been involved in the depopulation of the rural districts to swell the populations of the towns, and the consequent lapse of enormous areas of land either into pasturage or unused wilderness.