2SG Caroline Lucrdia Herschcl. [isso-issr. 



.... I have four complete years of the Astronom. 



Nachrichten ready bound for you I wished to give 



you the number of the paper (but cannot find it again) 

 where Bessel speaks of Saturn's satellites, but my eyes are 

 so dun, and I am too unwell for doing anything. I will 

 therefore only say he has seen the 6th but not the 7th, the 

 ring being in the way. In No. 293, two of Bessel's assist- 

 ants, Beer and Madler, say a great deal about the observa- 

 tions of your father, but that goes all for nothing. I will 

 only say in general that he did in one season more than any- 

 one else could have done, and would have resumed the 

 hunt the next fifteen }*ears if nothing had interfered. And 

 the Georgium Sidus was followed as long as anything could 

 be obtained from that planet, and it will yet be some twenty 

 years before he will be in that favourable situation in the 

 ecliptic where he was at the time when the satellites were 

 discovered. 



I have seen Struve's Catalogue of Double Stars, 

 wherein I find he agrees with your and your father's obser- 

 vations. .... Do not think, my dear nephew, that I 

 would expose myself so as to say a word about these things 

 to anybody else, but to you I cannot help letting it out 

 when I am nettled. 



I must leave off gossiping, else I shall not get this letter 

 away, in which you will find Dr. H.'s barometrical observa- 

 tions, wliich I received a few days ago 



SIR J. F. W. HERSCHEL TO MISS HERSCHEL. 



CAPE OF GOOD HOPE, Jan. 10, 1837. 



MY DEAR AUNT, 



* ; # * 



I am now at work on the spots in the sun, and the 

 general subject of solar radiation, which you know occu- 



