( I®? ) 
*tis 9 Inches \ from which on each fide, till you come to the Tro> 
ce/fus Menti, ’tis 7 Inches : Thus far as to its back-part. Now 
to its fore-part : Firft, there is the Condyle ( a. a) then there is ^ 
a (harp Spine which runs obliquely to the Corona (b.b.) whence 
to the Root of tne Teeth ’tis thicker and of a Semicircular form : 
Oppofite to this, the Bone begins to fwell at its outer fide, and 
becomes plain at its inner ^ that is to fay, as to that which re- 
gards the Mouth, and that which doth not. Its Surface on both 
fides is very polite and fmooth, having a great many Holes for 
immiflion and egrefsof the Blood Veflels, which nourifh the Bone j 
and at its fore part, it has two large Holes for the Maxi/laris in- 7 ‘ ^ 
fen or (Z. A.) or Branch of the 5th Pair of Nerves, which aFe 
difpers'd at the Roots of the Teeth. Next we come to the inner 
Subftance of the Bones, fo far as can be guefs’d, becaufe the pre- 
ferving of the Sceleton entire, has kept me from penetrating fo 
far into the Knowledge of it, as my Inclination might have led 
me. Every one is fenfible, who knows any thing in Ofteology , as 
well Human as Brutal, that immediately below the Corona, or 
thereby, there is a pretty large Hole in proportion to the Ani- 
mal, for the emillion of a Branch of the External Carotid Arte- M ax l- Iar ‘ Si 
ry, Jugular Vein, and 5th Pair op Nerves, call’d Maxillaris in- infenor * 
ferior , which are difpers’d in the Roots of the Teeth for their 
Nourilhment, and for conciliating to them that lively Idea of 
Pain, which thofe affeded with the Tooth-ach are very fenfible 
of ; and that in this Hole in Sheep, Calves, and otherQuadrupeds> 
efpecially fucb as are young, as alfo in Children before the 7th 
Year, and even afterwards for fome time, in the cavous pait of 
the Bone, where the Teeth do not penetrate the Jaw, there are 
Rudiments of Teeth to be feen cjvous in that extremity, which 77?? Rvdi- 
is toward the Bafe, fin which the Ligaments that keep the Root °f t ^ le - 
fix’d are firmly imparted) and folid at the other extremity * fo 
in this Animal from the fore-mention*d big Hole, I obferv d fe- 
veral of thefe Rudiments of Teeth lying Stratum fuper {Iratum, or 
rather placed perpendicularly acrofs the Bone of each others fide, 
from the Hole (b. b.) till the Teeth began to appear. Thofe that 8. 
were plac’d nearefl the Hole were fmaller, not above one inch in 
breadth, and^Inchin length, i. e. from above to below, cavous, 
as is obfervM, at the lower or back-part, ^ for reception of the 
Ligament, which b guarded by two thin hard Lamina) and folid 
at the other. Thofe neareft the Hole were two or three times 
interferted by Vembranes, whereby they could be disjoin’d. 
But after 1 . had taken out feveral, I found no more fuch. a Sepun 
rat ©a 
