Part III. And Stones tifytbem. 
Afoft Stone of a blewifh grey, with part of the Be/em- 
nites growing to it on one fide, and a Pettinites on the 
other. 
A petrify 'd COCLE immerfed in a Flint, 
The SMOOTH SPONDYLITES , with an Oblique 
Navle. 
ANOTHER, with an Oblique Navle, all over ftriated. 
A THIRD of the fame, furrow'd. * 
. A FOURTH, alfo furrowed, and with the Navle (harper 
and more produced. So hard, as fcarcelv diifoluble with 
any Acid. 
A FIFTH, with a ftrait Navle, and numerous Joy nts. - 
The OXES HEART. Bucardia. So call'd from its 
figure. Defcribed and figur d by Ferranti Imperato, and 
others, and out of them by Wormius. Tis divided, by a 
ridge along the middle, into two halfs. Each of them 
having a prominent Knob, a little winding , fomewhat 
like a Navle : fo that it may not be improperly called C ony- 
chites umbilicatus. Figur 'd by BeJIer with the name of 
Hyfterapetra. 
A SMOOTH CONCHITES, with an Oblique Navle, 
unequal fides, fomewhat round, and filfd with a Limy ful> 
fiance. 
Part of one, filled with a fort of granulated Spar. 
A fmooth and round one, undulated. 
ANOTHER, as hard as a Pebbles of a yellowifh and 
pellucid red. 
Another hard one, yet diflbluble with Acids. 
Another,with the Margins of the two halfs furrow'd and 
indented one into the other. 
A LONG CONCHITES, of a black colour. 
Another, undulated, and white $ filled with a black and 
yellow fubftance, which with Acids maketh a ftrong Effer- 
vescence. ' : 
ANOTHER, compreffed, and the end oppofite to the 
Bafe, pointed, like the common form of a Heart : and may 
therefore be called Cardites, 'Tis of a Limy fubftance xlif- 
foluble with Acids. rhx 
A Broad equilateral CONCHITES, radiated 
■hx Another, undulated, and radiated. * . <*i j 
A Third, undulated^ radiated, and circinkmA 
