( Vt? ) 
know the more extended a Nerve is, the greater is its Senfation, 
and a Bone is fitter for tenfion than either a Cartilage or other 
foft Subfiances are. The anterior Fojfa (b.b.J is from the Right Anterior 
to the Left 8 Inches, and from before to the Nervus Opticus be-^°^ a °f c ^ : 
hind 47 Inches, and of depth, i e. ftreight down from the Sella 
Turcica , or in the middle betwixt the forefaid Holes to the bot- 
tom of the Os Ethmoides on each fide, 2 l Inches The two mid- Middle 
die Fojfa are bounded before by the two anterior Eminences (e e ,) Fofis. 
and behind by the tw T o Proceffus Petrofi (j. s.) The Seat of the Brain 
is here 12 Inches Diameter (r. r.) In the Center between the two 
anterior Procejfes is the firft Pair of Holes ( f f ) at an Inch di- 
ftance. Thefe run obliquely between two fmall Eminences, where FirJ! Pair 
the Glandula Pitiutaria was lodg’d, call’d the Sella Turcica ( u.) °f Holes- 
and thefe two Procejfes are call’d in Human Subje&s Clineides. 
This Pair of Nerves runs obliquely downward 6 Inches, and paf- 
fes out below the Lamina on each fide of the Head ( s .) which Fig. 2. 
frames the upper Edge of the Sinus for the Globe of the Eye, 
being the fecondPair, caH’d the OptichJSlervcs. Thefe two Pro- 
cejfes running i Inch back on each fide, at the fame diftance afford 
two more Holes palling in below them, which could not be fnewn Second Pair. 
in the Figure ; this is call’d the Foramen lacerum , and through it 
pafs the third Pair, or Oculorum Motorij the 4th Pair, or Pathe- IzL< 
tici ; the Opthalmic, or firft Branch of the 5th Pair, and all the ’ 
fixth Pair (g-g-) The third Pair of Holes is at the back of the Third Pair . 
two anterior Eminences, betwixt the firft Pair and the External 
Part of the Seat of the Brain, 4 Inches diftant from each other 
(h. h.) They are the largeft of all thofe in the bottom of the Scull, 
except that for the Spinal Marrow, and have a -peculiar life, 
which is at large declared, Pages 82 and 83, when fpeaking of 
the Veffels and Nerves of the Probofcis ^ viz. that they are for the 
tranfmiifion of the fuperior Branch of the fecond Divifion of the 
5th Pair of Nerves, and a Branch of an Artery which proceeds 
from the Arteria dura Matris being feparated from Jt by 
the boney Septum , which paffes betwixt it and the Hole for the 
-third Branch of the 5th Pair Q. i.) runs along the Crtm (x.x.f 
and paffes out with the forefaid fecond Branch (g.g.) The fourth fourth Pair., 
Pair of Holes then is for the Egrefs of the third Branch of the- 
5th Pair (1. *'.) and Ir.grefs of a Branch from the Arteria dura F ,-, ; 
Mat is \ and the 5th Pair is for the Arteria dura Ma.tr is itfelf ' ^ ‘ J Air " 
(X k ) The fixth Pair is for the Carotid Artery (/./.) which- is Sixth Pair* 
other wife fituated here than in Human Subjects, j for in. them it 
