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GrORE — On Suspected Variable Stars. 313 



No. 17. y Cassiopeia. — 3-2 m. Ptolemy and SuflS. ; 2 m. Argelander 

 and Heis; 2-52 Sir J. Herscliel; 2-19 Pritchard (1882-810). In the 

 Bedford Catalogue (pp. 21 and 22) Smyth, gives some observations of 

 Sii" J. Herschel, tending to show variation in the light of this star, 

 llerschel's observations may, however, have been due to the fact that 

 he compared it with a Cassiopeise, which is a known variable. It shows 

 a remarkable spectrum with bright lines. 2-3 and 2*2 in HP. 



No. 18. 263 B.A.C. Piscnnn. = Lalanbe, 1611. — Rated 1^ by 

 Lalande. It is 6 m. in the B.A.C. Franks found it 8 m., and orange 

 (ISfovember, 1877). It is not in Birmingham's Catalogue of Red Stars. 



No. 19. -q Andeomeda. — 4, 4J Lalande ; 5 m. Harding ; 4-5 Heis ; 

 5 m. Franks, November 18, 1877 ; 4-41 Pritchard (1882*677). 4-65 HP. 



No. 20. Near yu, Cassiopeia. — Smyth says {Bedford Catalogue, p. 25), 

 ' ' Just 1 8' sonth of /A is a star which, though of the 6th magnitude, is 

 not in Piazzi. It is followed nearly on the parallel, about IP. off, by a 

 9th magnitude, and both are remarkable for being red, of a decided but 

 not deep tiat." In Nature, October 21, 1875, the followiug remarks 

 occur with reference to these stars : — '' There is no star of the 6th 

 magTiitude near this position at the present time, nor so far as we know 

 is there any record of such an object having been seen since the epoch 

 of Smyth's observations, 1832-71. It may, however, prove to be a 



variable of long period There is now a star of the 9th 



magnitude following /x Cassiopeise 17°-2 and 15'-38" south; this is 

 clearly Argelander' s star + 53°, No. 228 of the Burchmusterung, there 

 estimated 9-5, a considerably faiuter object than an average 9th magni- 

 tude in Bessel's scale ; its place would appear to correspond better 

 with that of Smyth's star, following his 6th magnitude nearly on the 

 parallel, than with that of the missing star. Probably this small 

 star may be variable also." 



No. 21. ^ Phoenicis.— 3 m. Lacaille; 3-80 Sii^ J. Herschel; 3-3 

 Gould, who suspects variation to the extent of half a magnitude {J7.A., 

 p. 271). 



No. 22. Lalajstde, 2037-8 Cassiopeia. — Rated 10 m. by Lalande, 

 September 29, 1790, and 8-9 m., December 27, 1790. It is 9 m. in 

 Harding's Atlas, and 7-0 in the Burclimmterung. 



No. 23. Laiai^de, 2097-8 and 2100.— 6, and 8m. Lalande; 8 

 Harding; 8 m. Piazzi; 7-2 in DM ; 6-7 Heis; 7-0 at Cordoba; 8m. 

 Bumham, January (1875), and 6-5 (1878-865). Suspected variable by 

 Gould {U. Argentina, p. 335); and Bumham {Memoirs R. A. 8., vol. 

 xlvii, p. 215). 



No. 24. ^ PisciuJi.— A double star, 6, 13 : 226°-5 : 9"-0. Smyth 

 says, "Though marked 'objectum subtile' by 2, it is steadily seen 

 through my telescope. But it is singular that Piazzi says of it, 



