ANTHELM'S STAR OF 1670.—The small star which is very close to the position of this object, as determined from the observations contained in Lemonnier's “Histoire Celeste,” deserves to be closely watched, as there is more than a suspicion of its variation within narrow limits. Thus in August, 1872, it was exactly equal to a star which follows it 12.5s. in R.A., 4′.9 to the north; while in November, 1874, it was as certainly fainter by half a magnitude. This small star precedes the variable S. Vulpeculae 43.6s., and is north of it 2′ 11” two other small stars follow less than 2′from the parallel, 22.4s. and 30.6s. respectively.