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I Ihould not have enquired farther into this Sub- 
ject upon the prefent Occafion, but, that I apprehend 
it to be a Matter of fome Confequence, efpecially 
\^ith Relation to Manufcripts. A Copy, for Inftance, 
of fome antient Author, writen in the Year 1375, 
and dated in Arabian Figures, by changing only 
the 3 into a Cypher, may be carried back three 
hundred Years ; or by making it a Nine, and taking 
out the ly may be raifed flill a Century higher, to 
975-, the fuppofed Year of the Worcefter Date. And 
thole, who are eonverfant with Manufcripts, are fern- 
fible, that the Age of them can’t always be deter- 
mined barely by the Hand. Since therefore Ara- 
bian Figures are in moll: Cafes much more eafily 
falfified, than Roman Numerals ; I humbly prefume, 
too great Caution cannot be ufed, in admiring any 
Inftances of them more early, than have been yet 
difcovered, but upon very clear and fufficient Evi- 
depce. 
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