374 COMET OF 1807 — 8. 



now descending upon the tops of the forest trees, I had not 

 time to complete my estimate of its place that evening, but 

 marked particularly its position with regard to certain stars both 

 in the field of the large telescope, and in the finder; the comet 

 was not visible in the last, but its position was known by the 

 intersection of the cross-wires, which coincided exactly with 

 the center of the field of the telescope, reserving to myself the 

 ascertainment of its place by the aid of those stars, in case the- 

 comet could not be again discovered. 



For many days the weather was extremely unfavourable, and 

 when it cleared up, I discovered the stars which had been no- 

 ted, both in the field of the great telescope, and in the tinder, 

 but the comet had removed, and though diligently searched 

 for along its supposed path, was seen no more. I now looked 

 out for some known star, which might pass over the field of 

 view of the telescope after the place of the comet, so as to be 

 enabled to determine their difference in R. A. and declination; 

 but none was to be found which would pass in any convenient 

 space of time, and the place of the comet being now very low 

 in the evening, I was obliged to make haste to approximate in 

 the best manner now in my power; hoping in the course of 

 some months to examine the subject again, when the part of 

 the heavens where the comet disappeared should be conveni- 

 ently seen in the eastern portion of the hemisphere. 



The place where the comet was last seen, is in the line join- 

 ing the stars £ and o Cassiopeas, and the difference of the co- 

 met's place in R. A. from o Cassiopeas was found, from obser- 

 vation, to be 96 seconds in time; from whence we deduce the 

 comet's place on the 25th of February at 8 h to have been 

 S° 7' 6" in R. A. and 48° 30' 58" north declination. This is 

 given only as an approximation. 



