262 Of Animal Bodies ptrifyd. Part Ilfj 
A THIRD, with the utmoft round far more fwelling, 
than in the other kinds $ having its Centre lying deep, and 
its front fpread wide on both fides. 
A FOURTH, of all, the moft flat, and with a (harp or 
edged Rim. Wrought all over, with undulated Strict^ al- 
moft.as in the Serpent-Stone. Thefe twolaft, particularly, 
(a) uhl fu- figur d in Aldrovandus. (a) 
pra * A FIFTH, with the Rounds, on one fide, all concave : 
fo that it looks almoft like one fplit through the middle. 
A SIXTH, beded within a tuberated Fire-Stone. 
Several fmall ones, of the kinds above-mentioned. 
The SHORT WHIRLE-STONE. Trochites. 
The LONG WHIRLE. Turbinites. There are feveral 
of them. In one, the feveral Rounds are hollow : a ground 
to believe it was once a fhell. 
The WHIRLED or SPIRAL MARCHASITE. 
The CONICK SNAIL-STONE. Cochlites pyramidalis. 
Very brittle, and maketh an Effervefcence with any 
Acid. 
Divers others SNAIL-STONES 3 fome of them of a 
Limy fubftance, others perfect Flint. 
The SEA-OYSTER-STONE. Oftrites CymbiformU. 
Shaped almoft. in the figure of a Boat. In the right fide 
efpecially there is as it were the fignature or feat of the 
Animal. So that one can hardly doubt of its being once a 
fhell. Yet this kind of Stone is fometimes found many 
miles from Sea or any great River. 
A Petrify 'd Oyfter and Wilk growing together. 
A great petrifycl SCALLOP. Figur d by Ambrofinus 
Muf^S ® w i tntne Name of Hippopeftinites. Given with feveral 
15 ' ' more of the fame bignefs, by Mr. Wicks. 'Tis 
half a foot over. Many of the fame kind were taken out 
of a great Rock in Virginia, forty miles from Sea or 
River. 
The fmaller PECTINITES, with fmooth ridges. 
ANOTHER, of a kind of Lead-colour. DilToluble with 
Acids. 
The Coralline PECTINITES, furrow'd, and wrought 
all over with the Species of fine Needle- WORK. Alfo fo- 
luble with Acids. 
A blackiih PECTINITES, a perfect Flint. 
A 
