The following is the answer from Professor Gauss to the letter already given:— DEAR MADAM,— Being returned hither a few days ago from a journey that had kept me absent during a month, I found your favour of September 8th, together with your extremely valuable present of Flamsteed’s “Hist. Cœl.,” “Atlas Cœl.,” and your own catalogue. Be assured that I acknowledge your kindness with the most sincere gratitude, and that these works, so precious by themselves, but much more so by the numerous enrichments from your own hand, shall always be considered as the greatest ornament of the library of our Observatory. I am very sorry that my absence from Göttingen has deprived me of the pleasure of seeing Mr. Grahame, who was calling upon me the same day I had set out for my journey. However, I am glad to understand from your nephew’s letter, which Mr. Grahame has left here, that this gentleman intends to return to Göttingen in the next year. I cannot express how much I feel happy of having made the personal acquaintance [of one] whose rare zeal and distinguished talents for science are paralleled by the amiability of her character, and I flatter myself that in future, if I find once more an opportunity of staying in Hanover, I shall not be denied the permission to repeat personally the assurance of the high esteem with which I am, Dear Madam, Your most obliged humble servant, CHARLES FREDERICK GAUSS. GÖTTINGEN, _Sept. 28, 1825_. CHAPTER VI. LIFE IN HANOVER—_continued_. [Sidenote: 1826. _To J. F. W. Herschel._] MISS HERSCHEL TO J. F. W. HERSCHEL. _Feb. 1, 1826._ MY DEAREST NEPHEW,— On the 17th January I received by the same post your letters of December 30th and January 9th. I should have answered your precious communication of December 30th immediately if I was not in hopes of receiving daily an answer to what I sent on the 28th December. I cannot express my thanks sufficiently to you for thinking me worthy of forming any judgment of your astronomical proceedings, and am only sorry that I cannot recall the health, eyesight, and _vigor_ I was blessed with twenty or thirty years ago; for nothing else is wanting (and that is all) for my coming by the first steamboat to offer you the same assistance (when sweeping) as, by your father’s instructions, I had been enabled to afford him. For an observer at your twenty-foot when sweeping wants nothing but a being that _can_ and _will_ execute his commands with the quickness of lightning [!], for you will have seen that in many sweeps six or twice six, &c., objects have been secured and described within the space of one minute of time.