( <4o ) 
way from what it would have been, had it pro- 
ceeded from an annual Parallax of the Star : But 
being now pretty well fatisfied, that it could not be 
entirely owing to the want of Exa&nefs in the Ob- 
fervations ; and having no Notion of any thing elfe, 
JutL could caufe fuch an apparent Motion as this in 
the Star j we began to think that fome Change in 
the Materials, &c. of the Inftrument itfelf, might 
have occafioned it. Under thefe Apprehenfions we 
remained fome time, but being at length fully con- 
vinced, by feveral Trials, of the great ExaCtnefs of 
the Inftrument, and finding by the gradual Increafe 
of the Stars Diftance from the Pole, that there muft 
be fome regular Caufe that produced it ; we took 
care to examine nicely, at the Time cf each Obfer- 
vation, how much it was : and about the Beginning 
cf 2^1 arch 1726, the Star was found to be 20^ more 
Southerly than at the Time of the firft Obfervation. 
It now indeed feemed to have arrived at its utmoft 
Limit Southward, becaufe in feveral Trials made a- 
bout this Time, no fenfible Difference was obferved 
in its Situation. By the Middle of April it appear- 
ed to be returning back again towards the North ; and 
about the Beginning of June , it pafted at the fame 
Diftance from the Zenith as it had done in ‘Decem- 
ber, when it was firft obferved. 
From the quick Alteration of this Star’s Declina- 
nation about this Time ( it increafing a Second in 
three Days ) it was concluded, that it would now 
proceed Northward, as it before had gone Southward 
or its prelent Situation , and it happened as was con- 
jectured : for the Star continued to move Northward 
Uil September following, when it again became fta- 
tionary, 
