( ) 
much more Southtrl'^ from his Ecliptick, (whofs Ohliqui- 
ty he makes 2 ' greater than we elleem it at prefent) di- 
ffering in the whole 4 f Min Cn . half of this difference 
may perhaps beexcufed, if refraflion were not allowed 
in this ( ale by T)cho\ yet two Minutes, in fuch a Star 
as Sirius^ is fomewhat too much for him to be mifta- 
ken 
But a further and more evident proof of this change 
is d.rawn from the Oblcrvation of the application of 
the Moon to ^ahlichsm Anno Chrijli 509 Mart, ii®, 
when in the beginning of the Night the Moon was 
feen to follow that Star v ry near, and femed to have 
Eclipfed it, lml 2 <x?^e ja'js 0 ^rLu S^^ofjuxr 
fjtJpei iiofl/ii '’n^cpsfleiOis ■rgfw fMput. /. c Stdl/i 
appoju.t erat parti pir iju.im h/J cabatur tim ,ts Lnnx illumi’ 
natus, as BuuiaUus, to whom we are beholden for this 
Anticnt Oblcrvation has tranflatcd it. Now from the 
undoubted principles of Aflronomy, it was iirpofliblc 
for this to be true at -^th ns, or near ir, unlefs the 
Latitude of Palilicium were much lefs than we at this 
time find it. Vide BnllUldi f hilolaicd, pjg I^z. 
This Argument Teems not unworthy of the Boya/ So- 
fifty's Confideration, to whom I humt'l) offer the plain 
Fa^ as I find it, and would be glad to have their Opi- 
nion. 
fiut whether it were really true, that the Obliquity of 
the Ecliptick was, in the time of Hipparchus and Ptole- 
my, really 2z Min. greater than now. may well be que- 
flioned ; (mao. Pappus Alexandrinus, who lived but about 
200 Years after Ptolemy, makes it the very fame that 
Wc do. Fide Pappi Cclk^> Lth, VI. Prop. 35". 
II. An 
