182 Proceedings of the Royal Irish Academy. 



74. R Ckateeis. — Schonfeld finds, from very iiiicertaiii data, a 

 period of 160 days. The star is of a remarkably red colour, and 

 follows a Crateris 43^, and V-2 to the soutli. A 9 m. precedes, and an 

 8-9 m. sf. 



75. S Leois-is. — Period derived by Schonfeld from observations 

 since 1860. In 1870, the error was 15 days. Schonfeld thiaks that 

 perhaps the period may have been somewhat greater at first. 



76. T Leoxis. — Eepeatedly observed in 1865, but invisible in 

 1863 ; and not seen, by Schonfeld, since 1866, with the exception of 

 a trace, February, 1874. 



77. X YrE&rNTS. — Seen by Schonfeld, March, 1873, and February, 

 1874, but nothing since known about the star. A 13 m. star closely 

 follows, according to Peters. Schonfeld finds an 11 m. following 2% 

 which he thinks identical with Peters' 13 m. star. 



78. R Coir^. — Owing to the near coincidence of its period with 

 that of the solar year, the star has become, since 1875, unfavourably 

 situated for observation. It has been well observed by "Winnecke 

 only. Schonfeld calls its colour, "stark rothlich." A 7*8 star n^. 



79. T YrEGLsris. — The elements, according to Schonfeld, represent 

 the observed maxima well, especially those since 1861. The light 

 curve is very little known ; but the greater quickness of the increase 

 from 11 m. is certain. Schonfeld mentions several small neighbouring 

 stars. He calls the colour of the variable, " sehr roth." 



80. P CoEvi. — According to Schonfeld, the Elements of the Cata- 

 logue represent almost perfectly the observed maxima, 1868-1870, 

 and those after 1874, June 18 ; but from observations by Lalande, 

 1796, April 23, and Argelander, 1851, March 8, the period given 

 seems too large. Increase of light quicker than decrease. Two 8 m. 

 stars and a 10 m. star in the immediate vicinity. 



81. Z YiEGrNis. — The variability of this star was discovered by 

 M. M. Henry, of the Paris Observatory, in 1874, and has been regu- 

 larly followed since 1876. According to M. P. Henry, a minimum 

 took place in October, 1882 {private letter, June, 1883). The star is 

 not in Lalande' s Catalogue. 



82. T. TJes^ Majoeis. — The Elements given represent, according to 

 Schonfeld, the maxima since 1860 to within about 10 days, but show 

 an error of 50 days in the oldest observation, by Argelander, March 

 17, 1843. Schonfeld thinks that the period has decreased, and notes 

 2 Minima observed by him, 1873, February 18, and November 10. 



