GrORE — 0)1 8mpected Variable Stars. 325 



of Catalogue of Knoivn Variahles). The nebula was missed by d' Arrest, 

 Oct. 3, 1861. On June, 26, 1862, Le Terrier could not see it with the 

 12-4 inch equatorial of the Paris Observatory. Secchi also failed to 

 see it. It was again seen with the 15-inch refractor at Pulkowa, Dec. 

 29, 1861, and March 22, 1862. Hind and Talmage, however, failed to 

 see it, Dec. 12, 1863, with the telescope with which it was discovered 

 (Chambers' Edition of Smyth's Bedford Catalogue, p. 107). Tempel 

 has also failed to see the nebula with 1 1 inches aperture. 



]S'o. 109. ^ Hetictjli. — 6 and 5 m. Lacaille ; 5-6 Behrmann ; 6'2 

 Ellery ; 6-0 to 6-5 at Cordoba; 6-7 CajJe Catalogue {19,1 4:-^%). Considered 

 I by Gould to be variable to the extent of at least 0'3m. It is a double 



star, 5i, 9 : 6°-l : 6"-4 (Sir J. Herschel, 1835). 



!N"o. 110. % 547 Eeldaa^i. — Comes suspected by Gledhill to be vari- 

 able {Olservatory , March, 1881). It was rated 11"5 by Struve, 1829 

 and 1832. It was missed by Dembowski in 1865, byBuruhamin 1873, 

 1876, and by Gledhill in 1879 ; but it was measured by Madler, 1845, 

 by Burnham 1877-9 and 1879-0, and in 1880 and 1881, and by 

 GledhiU 1880-0 (15°-8 2"-4). 



'Eo. 110a. 6'^ and 6"- Tatjei. — 4 and 3 m. Lalande ; 5 and 5^ Smyth ; 

 4*7 and 5 Struve ; 4*5 and 4-5 Argelander; 4 and 4 Heis and Franks ; 

 Pritchard measured 6^=4-13 and 6~ = ^-&b (thus reversing Struve's 

 magnitudes) (see Gel. Ohj., p. 394). March 31, 1884, I estimated 6' 

 five steps less than 6' with binocular. 3-92 and 3-62 H.P. 



Ifo. 111. v^ Eeidani. — (Heis and Behrmann) =ij^ Lacaille =50 El; 

 4|- and 5 m. Lacaille ; 5 m. Harding; 4 Heis and Behrmann; 4-7 at 

 Cordoba; 5 Cape Catalogue (1878-37). Suspected variable by Gould, 

 from observations at Cordoba, where the estimates varied from 4-3 to 

 5-0. Jan., 1876, I found it less than v"^ (Heis) Ericlani (=52 El.). 

 4-43 H.P. 



IS'o. 112. a Tatjei (Aldebaran). — A red star, rated 1 m. by most ob' 

 servers from Ptolemy to Heis ; 1.3 m. Gould; 1-12 Pritchard (1883)- 

 Espin thinks it variable in colour — yellow to red {Cel Ohj., p. 393). 

 Secchi found variations in its spectrum {Birmingham's Catalogue, p. 

 309). 1-00 and 1-2 H.P. 



]^o. 113. V Eridaki. — 4m. Sufi; 3-4 Argelander and Heis; 5 m. 

 Houzeau (1875-09); 3-8 Gould; 5 Eranks (=/a) Dec. 1877 ; 5-6 Cape 

 Catalogue (1879-05). Taking Gould's estimate of /a Eridani (4-0), I esti- 

 mated V as 3-8, Jan. 30, 1883. If we take the H.P. estimate of /a 

 (=4-31) then my estimate will be 4-11. 



No. 114. Strive 572 Tauei.— A double star, 6-5,6-5: 210°-3 : 

 3"-2 ; the components suspected of variation by Struve. Eranks found 

 them only 7 or 7-5, 1877 {Cel. Oljeds, p. 239). It seems to be LL 

 8693-4 (7, 7^). 



