288 



Caroline Lucretia, Herschel. 



[1837. 



weather) totally confined to iny solitary home ; and what is 

 worse, my eyes will not serve me to amuse myself with 

 reading. But what business had I to live so very long ? 



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



FELDHATTSEK, May 7, 1837. 



.... I will try to entertain you with some celestial 

 affairs in which it is delightful to find you still taking so 

 much interest. As you allude to Saturn's satellites in your 

 letter of October 20, I must tell you that I have at last got 

 decisive observations of the sixth satellite (the farthest of 

 my father's new ones). I had all but given the search up 

 in despair, when no longer ago than last Thursday (May 4th 

 inst.), being occupied in taking measures of the angles of 

 position of the five old satellites with the twenty-foot and a 

 polished new mirror, behold, there stood Mr. Sixth ! a little 



jrrec. 



foil. 



short of its preceding elongation. I have kept it well in 

 sight from 14 h 16'" Sid. T. till 16 h 35, in which time it had 

 advanced visibly in its orbit from beloiv the line of the 



ansse (as in figure) to above. In 

 this interval the planet had 

 moved over fully one diameter of 

 the body towards the preceding side, and, therefore, had 



