139 
the Brightness of two fixed Stars. 
perhaps be found to return after a certain number of more re- 
gular ones ; but to ascertain this, requires probably a long 
series of observations. The magnitude of the stars in the 
Northern Crown , marked on my plan, and to some of which 
the variable was compared, are here accurately fixed by a mean 
of many observations. (See Tab. II.) 
Magnitudes. “ 
I have in this paper followed, as much as possible, the same 
method and deductions as in my others, which the Society have 
done me the honour of publishing.* The subject of them all 
being very similar, it was difficult to avoid sometimes repeat- 
ing the same remarks, which, if omitted, might perhaps occa- 
sion some uncertainty, and perplex those who do not recollect 
or have not read the former papers. I shall now conclude with 
my observations on the variable in the Crown. 
4 
^All these characters are according to B aver, except the four last, which 
I have added. 
o 8.9 
P 9 
x 10 
* See Phil. Trans. Vol. 75, and 76, &c. 
T 2 
