30o Of Regular Stem. Part HL 
The GREAT PITH'D KNIT-BONE. This is not a 
fingle one, but a Clufter. They ftand together parallel, 
equal to the thick end of a Tohacco-Pipe-Stalk^ without 
exceeding fmooth, and of a yellowifh colour, fomewhat 
like that of the Plates in the Ludus Hetmontij, hereafter de- 
fcribed. Filled with a very large Pkh, anfwerable to that 
in an Eldem-Branch, hard and ftony x and of a blewifh co- 
lour, like that of blew Marie. The fpaces between thefe- 
veral Cylinders, fill'd up with another fort of Stone, of the 
colour of old Elm. The yellowiih Cylinders, being rub'd 
hard, or fcraped, hath a ftrong ftinking fcent : but what 
Species to compare it too, doth not at prefent occur. They 
are prefently diffolved with Spirit of Nitre. 
ANOTHER CLUSTER like the former 5 favmg, that 
the Cylinders ftand together} without any, or with little, 
order: and that the brown and blewifh Stones are both 
mixed in Veins, and feveral of the Cylinders hollow. 
The EMPTY KNIT-BONE. This is neither folid, no* 
hath any Pith, but a T P0% yet with a very fmall bore. 
Smooth both within and without. And tranfverfty ftriated,' 
as the Belemnites, hereafter defcrib'd. 
ANOTHER, fomewhat more hollow. This alfo is 
• tranfverfly ftriated, as the former $ but without rough and 
of an Iron-colour. 
A THIRD, moft hollow 5 knobed without, and of an 
Alh-colour. 
Of thefe Stonesyfcc the Relation efpecially of fob. Chryfia- 
Tr ?U V^ orus Beckrnannm, Phy fick Profeftor at Frankfurt 5 {a) who 
' 3 ' obferves, That they grow in a fandy, fcldom or never in a 
claiy-Ground. Sometimes two mens depths and with 
Branches fide- ways. Taper d, as in Plants 3 where thickeft, 
equal to an ordinary Arm 3 the fmall Branches, to ones little 
Finger. The Place where found is noted by a white fatty> 
Sand, the reft yellowiih round about 3 and underneath a 
dark, moift, and fatty putrid fubftance, like rotten- Wood, 
running in Veins and is the Mother of the QJleocolla. So 
that it feems to grow fomewhat after the manner of the En- 
trochus, or Stelechites above defcrib'd. 'Tis found moft m 
Saxony, and the Palatinate. 
This Stone, as is indicated by its Name, is highly efteemed 
for expediting the Coalition of broken Bones 3 $j hereof 
being 
