It became known in London suddenly on the morning of the Tuesday in the Easter Recess that the approaches to the Tunnel had been suddenly seized by a hostile French force that had landed by the night-mail disguised as tourists, and that the key of the apparatus destined to flood it in any case of emergency, was not forthcoming, the Chairman of the Company, who had charge of it, having suddenly disappeared without leaving his address. It was also further rumoured that the guns commanding the shore-exit had been spiked by active Shareholders anxious to protect their property from destruction at all hazards, and were useless. When, therefore at eleven o'clock, the second edition of the morning papers announced that a French army was pouring through the Tunnel, and occupying the neighbouring heights, at the rate of ten thousand men an hour, the panic became indescribable. Nor did it diminish when it was further known that the French Ambassador, leaving a threatening ultimatum behind him, had that afternoon taken his departure for Paris. The country flew to arms. Sir ARCHIBALD HARRISON hastily collected the available force at Aldershot, and took up his position on the Hog's Back, and awaited the approach of the enemy with 213 men, all told, and three guns. They took no notice of him. At twelve the following day it was known that the Duke of CAMBRIDGE, falling back on Sydenham, in command of a handful of Volunteers and a squadron of the Household Cavalry hurriedly got together, had capitulated in the Refreshment Department. The details of the disaster spread like wildfire. The consternation was terrific. The LORD MAYOR went into hysterics, and was, by common consent, removed to Colney Hatch, while an angry mob invaded the War Office, and seizing any members of the Ordnance Committee they could lay hold of, forthwith dragged them out, and lynched them in Pall Mall. That same evening a French army, 350,000 strong, entered London in triumph. A few outrages marked this occupation. The Nelson Column was thrown down, Waterloo Bridge blown up, Piccadilly re-christened the Rue Boulanger, and the whole of Madame TUSSAUD'S Collection seized as National property.