On the 7th of February Baron Brunnow, who had been Russian ambassador in England for fifteen years, quitted London. Notes were dispatched on the 27th from London and Paris to St. Petersburg, calling on Russia to evacuate the Principalities, a summons to which the Czar declined to reply. War was declared in a supplemental gazette, and on the 31st of March the declaration was read, according to ancient usage, from the steps of the Royal Exchange by the Sergeant-at-Arms of the City of London, to a great crowd that wound up the ceremony by giving three cheers for the Queen. Part of the troops had already embarked, their marching and embarkation being witnessed by multitudes with the utmost interest and enthusiasm. The chief sight was the departure of the Guards, the Grenadiers leaving by gaslight on the winter morning, the Fusiliers marching to Buckingham Palace, where at seven o'clock the Queen and the Prince, with their children, were ready to say good-bye. "They formed line, presented arms, and then cheered us very heartily, and went off cheering," the Queen wrote to the King of the Belgians.... "Many sorrowing friends were there, and one saw the shake of many a hand. My best wishes and prayers went with them all." It was a famous scene, which is remembered to this day. Another episode was that of the Duchess of Cambridge and her daughter, the Princess Mary, taking leave of the brigade with which the Duke of Cambridge, the only son and brother, left. Her Majesty and the Prince started for Osborne in the course of the next fortnight, to visit the superb fleet which was to sail from Spithead under Sir Charles Napier. "It will be a solemn moment," the Queen wrote again to Lord Aberdeen; "many a heart will be very heavy, and many a prayer, including our own, will be offered up for its safety and glory." In spite of the bad weather, which marred the arrangements, the Queen sailed from Portsmouth in the _Fairy_, and passing the _Victory_, with its heroic associations, went through the squadron of twenty great vessels, amidst the booming of the guns, the manning of the yards, and the cheers of the sailors. The following day the little _Fairy_, with its royal occupants, played a yet more striking part. At the head of the outward-bound squadron, it sailed with the ships for several miles, then stopped for the fleet to pass by, the Queen standing waving her handkerchief to the flag-ship. Her Majesty was, as she said, "very enthusiastic" about her army and navy, and wished she had sons in both of them, though she foresaw how she would suffer when she heard of the losses of her brave men. If she had not sons in either service, her cousin, the Duke of Cambridge, was with the Guards for a time, and her young nephews, Prince Victor of Hohenlohe and Prince Ernest Leiningen, were with their ships. The Queen paid the same compliment of giving a farewell greeting to the second division of the fleet.