Par* III. Of Regular Stories. *j<^ 
bigger than the former , and the fides above I an inch 
thick. Rough on the outfide, and fmooth within. Yet 
fo, as to be furrow'd with certain (hallow Rings. To which 
alfo the Calimus, therein contain cl, exactly anfwers, as any 
Metal doth to the Mould in which it is caft. Both of them 
make an Efervefcence with Acids. 
The CALIMVS of another Eagle-Stone, as big as a 
good big Gall, and knobed in the fame manner. 
Several Species of this Stone are figur d by Aldrovandw{a) 00 Muf.Me= 
The flinty Eagle-Stone, and many other Flints, if ob- 
ferv cl when they are broken, feem to be an Affay towards 
the Onyx. 
The Eagle-Stone is found in Apulia, Germany, Mifnia,iSc. 
Much accounted of by fome,as an Amulet againft Abortions. 
The SEMIGLOBULAR TOAD-STONE. Lapis Bufo- 
?ieusf. Garatronens. It looks like the the one half of a hard 
flinty Eagle-Stone 5 and probably, is nothing elfe. The 
Diametre « of an inch. 
The SEMIOVAL TOAD-STONE. Wis an inch long, 
1 an inch over, of a brown colour, and flinty. 
The Long SEMIOVAL TOAD-STONE. This alfo is 
flinty, and of a (hining brown, or the colour of Oriental 
Bezpar, being polifh cl. 'Tis about an inch long, and near 
\ an inch over. Bejler figures this, with the Name of Batra- 
choides. 
Another fort of Toad-Stone, femiglobular, arid folid, fc. 
with a flat bafe, is defcribed by Gefner. (b) Thus far of (h) Ub.de 
Stones more Round. I (hall next defcribe thofe which are Lap * Fl ^' 
Cylindrick, or near that Figure. And firft the Ofteocolla, of 
which here are feveral Species. 
The SOLID or Pithlefs KNIT-BONE. Ranked by 
Kentman, (c) and not improperly, amongft the forts of Ofte- '(e) FoffiL 
ocoUa. Yet obtains the peculiar Name of EN0STE0S : Nomenc! - 
being porous, light, fpongy, and cylindrick ; fo as to look 
juft like the inward part of a Bone, or of Harts- Horn, 
The KNIT-BONE with a fmall PITH. Tis bended 
almoft like the Letter /. Cylindrick, and three inches round. 
Almoft folid, yet containeth a very fmall Pith. The outer 
part, of an A(h-colour, and gritty or fabulous. The Pith, 
like mod white Chalk. Both of them make a confpieuous 
Efervefcence with Ac ids 3 but efpecially the Pith. 
Q^q 2 The 
