dinus, (a Perfon who hath very well deferved of the 
Mathematicks) but cut of a faulty Greek Copy, of 
which he oft complains : So that in many other Places 
he doth rather atcempt giving the Senfe, than the 
Words of his Author and even m that doth many times 
miftake. For whereas Eutocius htd long fince revifed 
divers Piv^ces of Archimedes^ and given us his Commen- 
taries and Emendations of them ; this Piece (with fomc 
others) had efcaped his Gare, and fo remained (uncor- 
reded) with all the old Errors which had then happen'df 
and, in the old D^^rici Dialed: (which Eutocius had chan- 
ged with the At tick in moft of thofe Pieces which he had 
revifed} and but very few Copies remaining, (of which 
Hervagms ittms to have had -but one, Commandi- 
nus tiih^v but the fame, or but one other. And the 
prefent Editor having no Manufcript Coj>y to confult, 
was left to ufe bis own Sagacity, making B^ational Conje^ 
had carefully preferved in his Edition ofhis faulty Copy) 
for lleftoring this Excellent Piece of Archimedes. 
^ To this was then fubjoined (and is now reprinted) 
that of Archimedes, called Kvx.Xh M.irfm^;^ or Dimenfio 
Ctrcali^ (a Piece worthily admired and valued by all Ma- 
thematicians fince his Time) which had been formerly 
publiflied in Greek, with other Works of Archimedes^ 
in the Eafil Edition, by Hervagipis ; not without fome 
Sphalmata^ but much fewer than thofe of the former 
Trad, by reafon that this had been revifed by Eutocius^ 
and thereby freed from many Errors which before that 
time had happened ; but fubjeft to feme others which. 
To this, (becaufe very fuccindly handled by Archime- 
des) was then added (and is now reprinted) the Com* 
menrary 
which Heruagius 
have happened fince. 
