Part III. Of Regular Stones. 303 
white Avibar. They are found in Germany , and other 
Parts, fometimes in England. They all make a ftron g.E.ffer- 
vefcence with Acids. Thus far of Stones fimply Conick. 
The WORME-STONE. Tis now broken at one end, 
yet about two inches and ’ long. Confifteth of about five 
folid Rounds, winding from the bigger end (about ? of an 
inch over) fo as to make a fpiral Cone. Not much unlike 
a Steel Worme ufed for the drawing of Corky out of 
Bottles. 
Another of the famefhape and bignefs. This Stone I find 
neither figur’d, nor mention’d by any Author, faving only 
Olearim. ( a) They were taken out of the midft of 
Rock. Mufeura - 
A NETED-STONE. Lapis retifomm. It confifteth of 
black and roundifh portions, fcverally furrounded with 
Veins, of an Okre-colour, running one into another after 
the manner of Net-work. Along the middle of each Vein 
(about*' 11 of an inch broad) runs a fmall Thread or Line, 
almoft of the fame colour. 
Another, with the Areas of the Net-work, not fo black, 
fofter, andfomewhat flaky. 
A FLINT of a dull Red, with the Figure, almoft, of 
a a encompafled with fix or feven Rings. 
The FLAT BOLTHEAD. Anchorites. Of affinity with 
that well deferibed by Wormim (b) with the Title of Silex (D Muf. lib.. 
venabuli ferreum Cufpidem exade referens. By Mofcardo , (c) 
with that of Pietre Ceraunie 5 who alfo figures it with three CO Muf. lib. 
or four Varieties. This like thofe, is a perfect Flint, and 2,c,5 °' 
femiperfpicuous. ’Tis hkewife in the fame manner, pointed 
like a Speer. Having at the other end, like thofe of Mof¬ 
cardo, a fhort Handle. But moreover, hath this peculiar, 
that ’tis pointed or fpiked alfo backward on both fides the 
Handle 5 with fome refemblance to an Anchor , or the Head 
of a Bearded-Dart: from whence I have nam’d it. Tis 
likewife toothed on the edges, and the fides as it were 
wrought with a kind of undulated fculpture, as thofe before 
mention’d. 
ANOTHER, different from the former, in that it is 
longer, hath a deeper Indenture, but no handle. Both of 
them ftrike fire like other Flints. That of Wormim was 
found in a Hill in the Diocefs of Ripen. 
Not 
