Miss Nightingale's work in connection with the Canadian expedition was done in the midst of a personal sorrow of her own, second only in poignancy, if second at all, to that caused by the death of Sidney Herbert. This was the death of Arthur Hugh Clough. He had broken down in health and been ordered abroad in April 1861, and she had urged him to go. He died, however, at Florence on November 12. They had been close friends since her return to England from the Crimea. His sweetness of disposition, his humour, his lofty moral feeling, alike attracted her. He on his side had deep admiration for her, and he devoted such strength--alas! but little--as remained to him from work in the Privy Council Office to her service. He fetched and carried for her. He made arrangements for her journeys, as we have heard, and escorted her. He saw her printers, he corrected her proofs. He became, at a modest salary, secretary to the Nightingale Fund. It was poor work to set a poet to, but he did it with cheerful modesty. He was intent, he told Miss Nightingale, upon "doing plain work"; he had "studied and taught," he said, "too much for a man's own moral good." In 1860 his health began to fail. Miss Nightingale was sometimes a little impatient. His loyalty and zeal she could never have doubted; but she was inclined to think him lacking in initiative and energy. She was always inclined to drive willing horses a little hardly. In the case of Clough, as in that of Sidney Herbert, she sometimes attributed to infirmity of will what was in fact due to infirmity of body. And in each case her grief, when the end came, was not free, I think, from some element of self-reproach. "I have always felt," she had written to her uncle (Dec. 7, 1860), "that I have been a great drag on Arthur's health and spirits, a much greater one than I should have chosen to be, if I had not promised him to die sooner." "She saw my father," wrote her cousin Beatrice to Mr. Nightingale (Dec. 4), "to speak only of Arthur, as only she can speak. She was quite natural, very affectionate, very, very much moved." But in her state of loneliness and nervous exhaustion her feeling for lost friends was sometimes morbid. She said that for months after the death of Sidney Herbert, and again after that of Clough, she could not bear to open a newspaper for dread of seeing some mention of a beloved name. Some years later she was sent a book by Mrs. Clough. "I like very much," she replied (Nov. 13, 1865)--"how much I cannot say--to receive that book from you. But it would be impossible to me to read it or look at it, not from want of time or strength, but from too much of both spent on his memory, from thinking, not too little, but too much on him. But I don't say this for others. I believe it is a morbid peculiarity of long illness, of the loss of power of resistance to morbid thoughts. I cannot bear to see a portrait of those who are gone." The depth of her grief at the death of Mr.