[ 101 ] 
obferved to be 2° 8' 34", 3 only. The liar y Bootis 
therefore appears by this comparifon to have moved 
_ fou th ward 29 6 in 78,257 years. 
On the 27th of May, 1692, Bootis was obferved 
by Mr. Flamfleed to be 2° 1 1 / 37T8 to the north of 
7T Bootis, which quantity fhould by computation be 
2' 39 // ,i lefs in 1768, or 2° 8' 5 8 /7 , 7. But it was 
found to be 2 0 8' 3 4 X/ , 3 - The liar y therefore ap- 
pears to have moved fouthward o' 24", 4 in 75,97 8 
years. 
On the 25th of April, 1693, vj Bootis was obferved 
to be 40' 20", 8 to the fouth of f Bootis, a far of 
the 6th magnitude ; and by myfelf that difference 
was obferved to be 42' 3 7", 5, by taking the mean 
of two obfervations on the 24th and 26th of May, 
1 768, differing only 4", 7. According to computa- 
tion, the variation of 7] Bootis in declination during the 
interval of the two obfervations was 135 9 7/ , 3 , and 
of/’Bootis 1 256", o ; and therefore the difference of 
variation in declination was i' 43", 3, by which the 
diftance of the Bars was increafed. The difference 
in declination therefore in 1768, if neither of the 
Bars moved, fhould have been o° 42' 04", 1 ; but it 
was obferved to be 3 3", 4 greater, by which quantity 
therefore y Bootis muff have moved fouthward in 
75,052 years. 
By reducing all the foregoing dedu&ions to 78 
years, Arflurus appears to have moved, 
Weftw. 
