fuch ftones which was dug out of a Marl-pit, at a little di- 
ftance from, and on the fame level with that of my Brothers, 
It is now converted into the leaf of a Table, and in the pof- 
lellion of the worlhipfiil Thomas Fane Efquire, in whofe grounds 
it was dug. I think it might not be a very different fort ot 
ftone which the Learned Mr. UHer mentions in the forecited 
Book, caf^ 2. fag. 20. hmc ant: em laftdt JoiuUtai mar more a eft^ ^ 
qu£e folirifojfit ^ maxtmeq-y fi cdchlttes diquts e& mtfceatur^ n nofiris ad foU^ 
turam -valde exfetkur. 
The imperfe£t as well as the complete formation of fome 
of the bivalvular kind ( the valves being only found fingle, 
and both forts in a ground never heretofore difturbedj are no 
light arguments for their being ftones. But by what means 
they receive this likenefs to Ihells, is hard to determine, your 
own conjecture fatisfiesme beft. mus.reg. fociet. fart, i.caf. i. 
and there can be no convin ing argument given, why the 
falts of Plants, or animal Bodies, wafhed down with rains, 
and lodged under ground ^ Jhould not there be difpofed in- 
to fuch hke Figures, as well as above it : probably in fome 
cafes much better, as in a colder place 5 and where therefore, 
the work not being done in an hurry, but more flowly, may 
be fo much the more regular. 
My Brother purpofes to dig up much more of the fame 
ground the next Summer : if any thing then occur, that may 
be added to this, or may afford reafon why I fhould alter my 
Opinion, about their being ftones, I fliall acquaint you with 
it, for whatever averfion I have to fay any thing of a fubjedt 
of this nature, is all conquered by the great delire I have 
to exprefs myfelf. 
SIR, 
Maidfione^Noy.11,16%1, Your moft 
Humble Servant, 
Griff, H0tlcj. 
E 2 
