298 
Of Regular Stones. Part III. 
The FLAT round EAGLE Stone. Of a brown colour, 
and figur’d like a Trocb. 
The AMYGDALINE. EAGLE Stone. Shaped like an 
Almond. Of a glofly brown, like half bright Iron. It con¬ 
tains a fort of Bole, of the colour of Fullers-Earth. 
The Eagle-Stone which containeth no Stone, but Earth, 
is called GEODES. GE/ETITES were more exprefs. 
ANOTHER, of the fame figure and bignefs 5 but fome- 
what flatter. 
A Rough and hard EAGLE Stone, the Concave furface 
whereof is daubed with a foft white wafh, a kind of Gypfum, 
diffoluble with Spirit of Nitre. 
ANOTHER Hard one, immerfed in Iron Ore. All thefe 
are Naked. Thofe that follow have a foft Coat. 
A COATED EAGLE Stone: A hollow Flint 5 one way, 
near two inches in Diametre, and almoft round. Cover’d 
with a kind of white Earth, about * th ofan inch thick: yet 
not Chalky, but effxte, making no Effervefcence w ith Acids. 
Containing feveral fparks or grains of Flint, duller’d in a 
round Lump, together with fome of the like Earth, as 
without. 
A little Flinty LUMP taken out of another of the fame 
Species. 
TWO more EAGLE Stones, of the fame Species, of a 
midling fize, and almoft as round as a Ball. One of them as 
big as a good big Walnut. 
A FOURTH, bigger than a Musket-Bullet, and as round. 
Cover’d, as the three former, with a white earthy Coat 5 
and containing the like fubftance in the centre. The main 
Body of all thefe, is either true Flint, or of a hard fub- 
ftance approaching to it. All thefe -are by fome called 
Males. 
The FOEMALE EAGLE Stone. ’Tis round, and in 
a manner Oval. As big as a good large Apple. Alh- 
colour’d without, and white within. Of a foft triable and 
chalky fubftance, inftantly diffoluble with Acids. From the 
outfide, to the Concave, i an inch thick. Containeth a foft 
'white chalky Stone, filling up its whole hollow, and an- 
fwering to it, as the 7 elf doth to the White of an Egg. This 
Stone is by Pliny called CALI MVS. 
ANOTHER, fomewhat harder. ’Tis alfo round, and 
bigger 
