But after all, dear Nephew, I beg you will consider your health. Encroach not too much on the hours which should be given to sleep. I know how wretched and feverish one feels after two or three nights waking, and I fear you have been too eager at your twenty-foot, and your telling me that you have been unwell for some months, and now only begin to feel better, makes me very unhappy, and I shall not be comfortable till I see by your next that you are perfectly well again; I am quite impatient to see what you have to say about the parallax of the fixed stars, but on such occasions I am vexed that your father did not live to know of your grand discoveries. You say something of a paper on the longitude of Paris; I hope you will think of Gauss when you have anything new. Among the letters from your father’s correspondents in alphabetical parcels you will find under the letter P. some of Pond’s, who was about the end of the last century in Lisbon, with an excellent seven-foot telescope of your father’s, and I remember that several letters passed between them about a double star in Böotes. I am much obliged to you for the sheet of Schumacher’s _Astronom. Nachrichten_. It is highly interesting to me, and will set many a one right without offending anyone. On looking in the 2nd Catalogue of double stars, No. 104, ζ Böotes, VI. Class, November 29th, 1782, and 3rd Catalogue, No. 114, ζ Böotes, I. Class, April 5th, 1796, I cannot help thinking on the possibility that in the lapse of thirteen years and a half the small stars may have come out from behind the large one. But I beg do not laugh at me for breaking my head about these things, and I will now begin to talk about what I can comprehend. [Sidenote: 1826. _Mr. South._] From your mentioning Mr. South in your last letter, I fear he intends leaving England, at which I should be very sorry on your account, for if I should not live long enough to know you comfortably married, I could only console myself by your having always a Babbage, South, or Grahame to pass your social hours with. If you can meet with a _good-natured, handsome, and sensible young lady_, pray think of it, and do not wait till you are old and cross. And let me know in time that I may set hands to work to make the bridal robe; here are women who work exquisitely, and at a price within the reach of my purse. * * * * * P.S.—Dear Nephew, I have spent too much time in gossiping with your dear mother for saying anything besides, but I am, Your most sincere and affectionate aunt, CAR. HERSCHEL. MISS HERSCHEL TO J. F. W. HERSCHEL. HANOVER, _Aug. 8, 1826_. * * * * *