C 13 ] 
< almoft oppofite to each other in Right Afcenfion, 
I found, that they were equally affe&ed by this 
Caufe 5 for whilft: y "Draconis appeared to have 
moved Northward, the fmall Star, which is the 
3 yth Camelopardali Hevel. in the British Catalogue, 
feem'd to have gone as much towards the South : 
which fhew'd, that this apparent Motion, in both 
thofe Stars, might proceed from a Nutation in the 
Earth's Axis; whereas the Comparifon of my Obfer- 
vations of the fame Stars, formerly enabled me to 
draw a different Conclufion, with refpeft to the 
Caufe of the annual Aberrations arifing from the 
Motion of Light. For the apparent Alteration in 
y c JDraconis , from that Caufe, being as great again 
as in the other fmall Star, proved, that that Bhre- 
Tiomenon did not proceed from a Nutation of the 
Earth's Axis; as, on the contrary, this may. Upon 
making the like Comparifon between the Obferva- 
tions of other Stars, that lie nearly oppofite in Right 
Afcenfion, whatever their Situations were with re- 
fpect to the Cardinal Points of the Equator, it ap- 
peared, that their Change of Declination was nearly 
equal, but contrary ; and fuch as a Nutation or Mo- 
tion of the Earth’s Axis would cffeCL 
The Moon's Afcending Node being got back to- 
wards the Beginning of Capricorn in the Year 1732. 
the Stars near the Equinoctial Colure appeared, about 
that time, to change their Declinations no more, 
than a Prcceffion of 50" required; whilft fome of 
thofe near the Solftitial Colure altered theirs above 
2 n in a Year lefs, than they ought. Soon after, I 
perceived the annual Change of Declination of the 
former to be diminifhed, fo as to become lefs than 
yo /;y 
