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I. A DemonJl ration of the Number of Acres con- 
tained in England, or South-Britain j and the 
life which may be made of it. By Dr. Nehe- 
miah Grew, Fellow of the Royal Socieiy ■ and of 
the College of (phyficians . 
S Everal Perfons, and fome of great Abilities, have 
given us, as they have fuppofed, the juft Number 
of Acres contained in England, or South Britain , or ve- 
ry near it. The Excellent Sir William Pety reckons 
about 28 Millions: Others, 29 Millions j others, a few 
more. But I humbly affirm, they have all been miftaken 
in under-reckoning. 
And the reafon of their miftake Teems to have been 
their reckoning only by the^Maps^ that is, by compu- 
ted, and not by meafured Miles $ by which only the 
Number of Acres can be known, 
I have fees 1 an Account of the Number of Acres in 
each County : Which Account, whether taken from 
' Dooms-Day Book, or from any other Regiftry, cannot 
^be True. For tho’ we have loft fome Land, yet there 
is a great deal more now gained, which in the Conque. 
ror’s time Jay under Sea. Within 120 Years, very 
much has been recovered out of the Seas, and main- 
tained by Banks, in the Marlhes and Fenns of EJJex , 
Kent , and the Ifle of Ely. And in fome Parts of Lin - 
colnfhire, the Land has gained of the Sea, 4 Miles in a 
dired Line from Land to Sea, in the memory of Men 
aow Living. t 
Nor 
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