191 
the Dorpat .telescope of 9 6 inches aperture, the calculated 
limit for the larger telescope, as given in the Poulkowa Cata- 
logue of 1843, being 12-89 mag. 
Mr. Baxendell drew attention to Sir John Herschel’s 
“ scarlet, almost blood- coloured star,” immediately following 
a Crateris, and slated that, from observations made during 
the spring of last year, and again during the present month, 
he had found that this remarkable object belongs to the list 
of variable stars. Its present brightness is fully three-fourths 
of a magnitude less than that observed last spring ; but this 
probably does not represent the extreme range of variation to 
which it is subject. In conformity with Prof. Argelander’s 
system of nomenclature this new variable will be designated 
R Crateris. Its mean place for 1865-0 is R.A. 10'' 53 m - 
55-4 a -; Dec. 17° 36' 3" S. 
