394 



KEPORT 1867. 



on a general chart of the constellations (see figure)* specially provided by 

 the Committee of the British Association for this purpose, with a view of de- 

 Tracks of Meteors observed at the Eoyal Observatory, Greenwich, 1866, 



November 13-14. 



termining the exact position of the radiant-point. The tracks prolonged 

 backwards, with very few exceptions, pass across a small circular area, about 

 10° in width, having its centre near the star x Leonis, about |° north of that 

 star in right ascension 148° 50' (9" 55"'), N. Dcel. 23°. The' position of the 

 small star x Leonis (Bode) is the identical place assigned to the radiant- 

 l^oint of the great November shower, in the year 1833, by Professor Twining. 

 At Glasgow. — The tracks of eighty-three meteors recorded between the 

 period of the greatest intensity of the shower at 1'' 15'" a.m. and 2'' 40'" a.m. 

 were projected by Mr. Herschel, with the assistance of Mr. A. Macgregor, on 

 a similar chart, and indicate nearly the same position of the radiant-point in 

 R. A. 149° {Q^ 56'"), N. Decl. 24°t. Professor Grant, by means of the same 

 star-chart and with forty-three alineations, obtained for the position of the 

 radiant-point R. A. 147° 35' (9^ 50'"), N. Decl. 22° 53' ; while his assistant, 

 Mr. J. Plummer, with the projections of twenty-six alineations on the same 

 map, found the position of the radiant-point in 11. A. 150° 30' (lO'' 2"^), N. 

 Decl. 21° .36'. Allowing twice the weight to the former determination, the 

 definitive position of the radiant-point that results from both of these obser- 

 vations combined is in R. A. 148° 33' (9" 54'"), N. Decl. 22° 30'. A list of 

 fifteen of these positions of the radiant-point are given by Mr. Herschel in 



* Diagram at p. .55, vol. xxvii. of the ' Monthly Notices ' of the Royal Astronomical 

 Society. 



t Diagi-am at p. 56, vol. xxvii. of tlie 'Monthly Notices' of the Royal Astronomical 

 Society. 



