or boundings of certain d/aphragm+.or partitions,which feem'd todivide 
the cavity of the Shell into.a multitude of very proportionare afd regs 
lar cells or caverns, thelé Diapbragms, in inany of them, Ifound itd a 
d the 
fe and compleat, of avery diftingé fubftance from that which fill 
cavities, and exactly of the fame kind with that which covered the outé 
fide, being for the moft part whitith, or #other-of-pearl colour’d; (0. 
~ As for the ¢avities between tholé Diapbrasms, J found forme of them 
fill'd with Marle, and others with feveral kinds of ftones, others, for the 
molt part hollow, onely the whole cavity was ulially covered covet 
with a kind of tartareous petrifyd fabftante, which ftuck about the fides} 
and was there {hot into very curious regular Figures, jut as Taetdrj or. 
other diffolv’d Salts are obferv'd to ftick and erg/tabixe about the fides of 
the containing Veflels; or like thofe little Diamants whith I before obs 
ferved to have covered the vaulted cavity of a Flints others had thefe 
tavities all lin’d with a kind of metaline or marchafite-like fubltance 
which with a Azicrofeope } could as plainly fee mioft curioully nbd vega 
lutly figuted, as Thad done thofein a Flint. = wel Ter) 
~ From all which, and feveral other particulars whith I obferv'd, I cans 
not but think, that all thefe, and moft other kinds of ftoy bodies which 
are found thus ftrangely figured,do owe their formhation afid figuration, 
hotto any kind of P/a/fick virtue inherent in the earth, but to the Shells 
of certain Shel-fithes, which, either by {ome Deluge, Inundation, Earths 
aes: or fome fuch other means, cathe to be thrown to that place, and 
nere to be fill’d with fome kind of Mudd or Clay, or perme ae 
or fome other fubftance, which in trac of time has been fettled toges 
ther and hardned in thofe fhelly moulds into thofe fhaped fubitances we 
how find them ; that the great and thitvend of thefe’Shells by that Earth- 
ee or what ever other extraordinay caufe it was that broughe thent 
thither, wasbroken offs: aiid that many orhers were otherwife broken, 
bruifed and disfigured’; that thef Shells which are thus /p7raded\and fe+, 
parated with Diaphragmes,were fomne kind of Nautil? or Porcelane. a 
and that others were fhells of Cockles,Adufcles,Periwincles, Scolops,Scc. 
Various forts ; that thefe Shells in many, from the particular nature of the 
Containing or enclos’d Earth, or fomte other caufe, have in tract of time 
Totted and mouldred away, and onely left their impreflions, both on the 
contaihing’ and-containied {ubftancess, and {6 Jaf them pretty looleone 
within another, fothat they:may be eafily party a engck,ox two 
of a Hammer. That-others of thefe Shells, acdording to’ the’ nature 
of the fubftances adjacent to them, have, by. a long continuance in 
that pofture, been petrify’d and turd into the nature of ftone; juft as I 
evennow obferv'd feveral forts of Wadd to be. That oftentimes the Shell 
may be found with one kind of fubftance within; and quite another 
ty having, perkiaps, been fill'd in one place! and afterwards tranfla~ 
Ww hod 
_ted to another, which Phave vety frequently obferv’d in Coekle, 4 Wes 
Periwincle, and other {hells, which E have found by the Sea fide: Nay; 
further that fome parts of the fame Shell may be alta in one _— 
me 
* ‘ 
MicROGRAPHTA: tif 
thele jitares, by breaking fome of thefe ftonesI found to be the ter mind) 
