174 Proceedings of the Royal Irish Academy. 



30. E Lepoeis. — Hind's "crimson star." Yery difficult to observe 

 on account of its colour, which Schonfeld calls " ungewohnlich inten- 

 siv blutrothen." It is the / star of four nearly in a line: 16th 

 March, 1876, with 3-inch refractor, I found it rather brighter than 

 the furthest of the four, and much brighter than the next. The near- 

 est star faint. Colour of E intense red. 



Schonfeld gives the duration of increase of light as 230 days, and 

 that of decrease 208 days. 



31. S (64) Eezdani. — Discovered to be variable by Gould from 

 observations at Cordoba, where the estimates of magnitude varied 

 fi'om 4"8 to 5'7. It was rated 5^ and 6 by Lalande, and 6 m. by 

 Argelander and Heis. 



32. E AuEiGJE. — Elements, according to Schonfeld, somewhat 

 uncertain ; 9 maxima give a period of 461*3 days, and 4 Minima 

 467'3 days. He says the light increase shows the rare phenomenon 

 of a stand (Stilhtandes) at the magnitude 9*2 to 9*0, which occurs about 

 114 days before the maximum, and lasts about 48 days, and even 

 forms, in some years, a secondary maximum and minimum. On the 

 average, the increase from 8"5 m. lasts 40 days, and the decrease 62 

 days. A 9 m. star s. p. 



33. S AuEiG^. — Announced as variable by Huner in 1881. The 

 star was observed by him. 1878, September 29 and October 5, and 

 its strong red colour and spectrum noted. On December 31, 1880, he 

 missed the star, and on January 20, 1881, found it quite invisible in a 

 4-inch refractor, when it must have been fainter than 12 mag. About 

 a month later, however, February 23, it was easily visible, and 

 not much below 10-5 m. Tbe fact of variability, M. Duner considers 

 certain. The star is recorded as 9-4 m. in the Durchmusterung , and is 

 No. 108 of Birmingham's Catalogue of Eed Stars, with the remark, 

 "d'Arrest (17th J^o v., 1868); sehr roth; 9-5".— 5.'s ohs.: "1876, 

 March 13, not seen." 



34. S Oeionis. — A remarkable variable discovered by the Eev. T. 

 W. Webb, 1870. Yery red. Webb says :— " Centre of little triplet, 

 11, 11 '5 m. in large triangle; sweep 6^ m. W from minute pair 10' n 

 of 42." 



35 8 Orionis. — Schonfeld finds a small variation, but no regular 

 period. Anwers found a period of 16-08 or 15-91 days with a minimum 

 nearly in the middle of two maxima. Dr. Gould seems to think the 

 variation doubtful ( Uranometria Argentina, p. 329). 



36. T Oeiokis.— This is Lalande 10492, and Dr. Gould says "it 

 is certainly variable." It has been observed by Thome at Cordoba at 



