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diftant from where they now lie, or the Pieces Broken* 
from them muft at feme time or other have been 
removed to fome diftant Place. 
Several of thefe Pieces of broken Pebbles have 
their Edges and Corners fo very {harp, that it feems 
as if they had never been removed from the Place 
where they received the Damage. Others have their 
Sides and Corners fo blunted, rounded, and worn 
away, that one cannot help imagining they muft 
have been very roughly tofled backwards and for- 
wards againft other hard Bodies, and that too with 
great Violence, or for a very long Continuance; 
ftnce, without a great deal of Friftion, fuch hard 
Bodies could fcarcely have been reduced to the Forms 
they are now found im 
It may polfibly be obje&ed, that thefe Pieces of 
Stones grew in the Figure wherein they now ap- 
pear 5 but I am fully fatisfied, that any Man who will 
take the Pains to examine thefe Bodies carefully, will 
foon be convinced, from their Veins, or Grain, or 
Coats, which furround each other, fomewhat like' 
the different Years Growth in Trees, that they 
muft once have been complete and intire : And this 
will be more fully evident, if they are compared 
with a Stone broken by Art. 
Among thefe Strata of Pebbles are feveral Frag- 
ments of various Kinds of Marble, various Kinds of 
Sand-Stone, and various Kinds of Gypfum (though 
this Part of the Kingdom affordeth no fuch thing) ; 
mod of which have attained the Hardnefs of the 
very hard eft of our Pebbles, as it fhould feem, by 
lying amongft them* 
Such 
