TO PROFESSOR LEWIS CAMPELL

                                                                          8 Palace Gardens Terrace,
                                                                     London, W., 22d November 1864.

     It was very kind of you to think of me at this time, and write to me I shall always remember your mother's  kindness to me, beginning more than twenty-three years ago, and how she made me the same as you two when I   came to see you. To you her memory is what you can share with none, so I can say no more except that you will   continue to find that to have had a mother so devoted to her duty gives you a consciousness of your own obligations which will be strengthened whenever you think of her.