138 Mr. Herschei/s and Mr. South’s observations of the apparent 
y Leonis continued. 
Mean result. 
Position 8° 24' sf; Distance 3". 2 43 ; 1822.24. 
The difference of size and closeness of these stars renders 
the measure of their position uncommonly difficult ; but as 
the angle here set down is a mean of 41 single measures, we 
cannot suppose it materially in error, especially as it is very 
nearly a mean between the results of the two best sets of ob- 
servations — those of April, 1821, and April, 1823, which, 
taken alone, would give 8° 29' 5 f. 
Other measures of this remarkable star are, 
1782.71 ; Position 6° 30' nf ; H. mean of 2 meas. in 1782 and 
1783, “ Account of changes, &c.” 
1801.72; 4 42 sf ; H. mean of 7 measures from 
1800 to 1803. 
1820.28; 10 32 sf; Distance 3 f, .74 ; Struve, Addi- 
tamenta, &c. 176. 
1820.91 ; 9 18 sf; Struve, Dorpat Obs. iii. by 19 
measures in 1820 and 1821. 
*> 
The 1st position assigned by Mr. Struve is a mean of 
three measures, one of which, 13 0 39' s f , is undoubtedly erro- 
neous, being larger than any single measure of ours, among 
so many. If we reject this, the mean of the other two comes 
out 8° 59', which agrees exactly with the result of our best 
set of observations. 
Position of the star C, 31 0 o' np ; H. MS. 20-feet reflector, 
1783.30. 
27 30 np ± ; H. and S. as above. 
