Presently some old work in a new form came in Miss Nightingale's way. She had returned to London in November, chiefly in order to be on the spot for consultation and suggestion in connection with the Memorial to Sidney Herbert. It was her suggestion, for one thing, that the Memorial should include a Prize Medal at the Army Medical School. For this sojourn in London, Sir Harry Verney lent his house in South Street[5] to Miss Nightingale. The American Civil War now kept her busy. "Did I tell you," she wrote to Dr. Farr (Oct. 8), "that I had forwarded to the War Secretary at Washington, upon application, all our War Office Forms and Reports, statistical and other, taking the occasion to tell them that, as the U.S. had adopted our Registrar-General's nomenclature, it would be easier for them to adopt our Army Statistics Forms. It appears that they, the Northern States, are quite puzzled by their own want of any Army organization. I also took occasion to tell them of our Chinese success in reducing the Army mortality to one-tenth of what it was, and the Constantly Sick to one-seventh of what they were during the first winter of the Crimean War, due to my dear master." When the Civil War broke out, Miss Nightingale's example in the Crimea had produced an immediate effect. A "Woman's Central Association of Relief" was formed in New York. In co-operation with other bodies they petitioned the Secretary of War to appoint a Sanitary Commission, and after some delay this was done. Camps were inspected; female nurses were sent to the hospitals; contrivances for improved cooking were supplied, and in short, much of Miss Nightingale's Crimean work was reproduced.[6] Presently she became more directly concerned. At the end of the year (1861) England was on the verge of being embroiled in the conflict, and, whilst the agitation over the _Trent_ affair was at its height, the British Government decided to send reinforcements to Canada. Lord de Grey was charged with many of the preparations. He asked Miss Nightingale (Dec. 3) if he might consult her personally "as to sanitary arrangements generally." He wished to profit by her experience and judgment in relation to transports, hospitals, clothing of the troops, supplies, comforts for the sick, and generally upon "the defects and dangers to be feared," and how best to prevent them. He also asked for the names of suitable men for the position of Principal Medical Officer, and he consulted her again before making the appointment. Without a moment's loss of time, she set to work in conjunction with Dr. Sutherland, and sent in her suggestions. The draft instructions to the officers in charge of the expedition were sent to her on December 8. On December 10 Lord de Grey wrote: "I have got all your suggestions inserted in the Instructions, and am greatly obliged to you for them." "We are shipping off the Expedition to Canada as fast as we can," she wrote to Madame Mohl (Dec. 13). "I have been working just as I did in