﻿Miscellanies. 



403 



Perihelion passage, 

 Long, of perihelion, 



u of asc. node, 





Inclination, - 

 Perihelion dist., 

 Motion, 



1844, Dec. 20-102786, Berlin m. t 



277° 57' 12"-2 \ m. eq. 



117° 42' 24"- 1 ) Feb. 1. 

 46° 14' 19"'0 



0-1054316. 



Direct. 



Mr. Joseph S. Hubbard, (recently of this city,) in a letter dated Feb. 

 13, gives the following parabolic elements of this comet, computed 



D. C, by Capt. Fremont and himself. 



Washing! 



Perihelion passage, 

 Long, of perihelion, 



u of asc. node, 



1844, Dec. 14-951451 Berlin m. t. 



292° 20' 26"-4 

 117° 30' 13' 7 



m. equin 



Feb. 2. 



Inclination, 

 Perihelion dist., 

 Motion, 



46 



T 20"-3 



19842 



Direct. 



The annexed parabolic elements have been derived from observa- 

 tions at Yale College Observatory, made by Mr. Francis Bradley, Feb. 

 12, and March 6, taken in connection with Prof. K.'s observation of 

 Jan. 27 ;— the measurement of the same date made here by Mr. B. 

 being unavailable for want of the position of the star with which the 

 comet was compared. 



Perihelion passage, 

 Long, of perihelion, 



" of asc. node, 

 Inclination, - 

 Perihelion dist., 

 Motion, 



1844, Dec. 14-5700 



Gr. m. t. 



294° 20 

 118° 21 

 45° 40' 37 

 0-232994. 



Direct. 



m. equin. 

 Jan. I. 1845. 



// 





12. ZT Arrest's Comet. — A telescopic comet in the constellation Cyg- 

 nus, was discovered by M. D'Arrest at Berlin, Dec. 28, 1844. The 

 following elements have been computed by M. Rumker. 



Perihelion passage 

 Longitude of perihelion 



1845 



Greenwich m. t. 



.. 



of ascending node 



Inclination, 

 Log. per. dist., 

 Motion, 



97° 59' 35" 



T 37" 



337° 

 47° 4' 21 

 995756. 



Direct. 



// 



analogy 



but it is unsafe hastily to affirm an identity. 



22 



13. School for the study of Elementary and Analytical Chemistry, 

 by Dr. C. T. Jackson, Boston—We would call attention to Dr. Jack- 



