Miscellanies. 403 



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



Long, of perihelion, 

 " of asc. node, 

 Inclination, - 

 Perihelion dist.. 

 Motion, 



277° 57' 12"-2 ) m. eq. 

 117° 42' 24"- 1 ) Feb. 1. 

 46° 14' 19"0 

 01054316. 

 Direct. 



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

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

 from observations made Jan. 30, Feb. 2 and 6, at Washington City, 

 D. C, by Capt. Fremont and himself. 



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



Long, of perihelion, - - 292° 20' 26"-4 ) m. equin. 

 " of asc. node, - - 117° 30' 13" -7 \ Feb. 2. 



Inclination, ... 46° 7' 20"-3 



Perihelion dist., - - - 0-2198425. 



Motion, ... - 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, 1844, Dec. 14-5700 Gr. m. t. 



Long, of perihelion, - - 294° 20' 30" ^ m. equin. 



" of asc. node, - - 118° 21' 15" S Jan. 1, 1845. 



Inclination, .... 45° 40' 37" 



Perihelion dist., - - - 0-232994. 



Motion, .... Direct. 



12. D'' Arrests 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, 1845, Jan. 12-3528 Greenwich m. t. 



Longitude of perihelion, - - 97° 59' 35" 

 " of ascending node, - 337° 7' 37" 

 Inclination, - - - - 47° 4' 21" 



Log. per. dist., .... 9-95756. 



Motion, Direct. 



These elements have some analogy to those of the comet of 1779 ; 

 but it is unsafe hastily to affirm an identity. — LUnstitut, Jan. 22, 1845. 



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

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



