342 Proceedings of the Royal Irish Academy. 



measures in Peloruary, March, and April, 1883, vary from 6*09 to 6-77. 

 It is a quintuple star, Struve's principle star having been found closely 

 double by Burnham, with two other faint companions, within 31" of the 

 primary. 5-77 H.P. 



1^0. 225. 65 (P) Geminoeum. — Eated 8-i-m. by Lalande in March, 

 1794, and 5i-m. in Eebruaiy, 1795; 5-6 Piazzi ; 7 m. Bessel ; 5 m. 

 Heis. Sir "W. Herschel found 60-65-64. My observations are : — 



January 18, 1876, 65 about = 64, or perhaps slightly less. 

 December 30, 1876, 65 very slightly brighter than 64. 

 January 28, 1878, 65 about = 64. 

 December 1, 1880, 65 and 64 exactly equal. 

 December 25, 1881, 65 two steps brighter than 64. 

 January 7, 1882, 65 two steps brighter than 64. 

 March 31, 1883, 65 two steps brighter than 64. 

 ^November 20, 1883, 65 one step brighter than 64. 



jSTo. 226. WB. 669 Monoceeotis. — Observed as 4-J- m. by Eumker 

 in 1822, and suspected by Olbers, in 1824, to be a remarkable variable. 

 It was rated only 8'9 by Pellocker in the Berlin Academy Charts. It 

 is not given in Argelander' s Uranometria, but is 6-5 in the D.M. Heis 

 rated it 6-7, and identified it with YII. 669 of Weisse's Second Cata- 

 logue. It is 6-0 in the Uranometria Argentina. It is not in Lalande' s 

 Catalogue, but is 7 m. m Sarding'' s Atlas, and underlined. March 27, 

 1875, I found it about 7 m. ; January 19, 1876, and January, 1877, 

 about 61m. , less than 25 Monocerotis, but brighter than two stars/; 

 March 18, 1877 (Punjab), visible to naked eye, about 6 m., but less 

 than 25 Monocerotis ; January 31, 1878, less than 25, but brighter 

 than the two stars/; March 31, 1883, from comparisons with 25 and 24, 

 I estimated its mag. 6'2 ; Pebruary 21, 1884, 1 estimated it 6-1 - about 

 = LL 15136. 



No. 227. BiEiri^^GHAM 178 Mokoceeotis = Lalaiv^de 14599. — 6 m. 

 Lalande; 7m. Birmingham, February 14, 1875; 6"3 Tebbutt, June, 

 1875 ; 6-2 at Cordoba. In Pebruary, 1876, and January, 1877, I 

 estimated it at 6+m. {Southern Stellar Ohjects, p. 98). Photometric 

 measm-es by Espin in Pebruary, March, and April, 1883, vary from 

 6*35 to 6-57 [private letter). 



1^0. 228. Lalande 14571 GEimfOExrM. — 81 Lalande. Suspected 

 variable by Tebbutt, 1880 {Hon. Not. E.A.8., May, 1880). On De- 

 cember 1, 1880, Januaiy 7, 1882, and March 31, 1883, I found it two 

 steps less than BAG 2472 (closely n p). 



jSTo. 229. - Canis Min"0EIS. — 6 m. in I[arding''s Atlas, but observed 

 only 1^ m. by me, Pebruary 4, 1877. It was then less than Lalande 

 14720, but brighter than Lalande 14726. It seems to have been 



