( **7 ) 
This Protuberance inclines forward toward the firffc Vertebra . 
3. Its Body or back part, and Bsfe of the Tooth (/.) tranf-B. 2. 
verfely 4 t Inches, perpendicularly 4 Inches. 4. Two oblique 
Procelfes, by which ’tis articulated with thofe of the following, 
and betwixt which thefe are 4lnches (Jo. h.) 5. Two tranfverfe 
Procelfes ( g.g .) each 2 Inches long. At its fore part on each 
fide of the I ooth (d.) are two Protuberances (<? e ) which are 
received by the two hind Cavities of the firft Vertebra. This Ver - A. 2.' 
tebra is two Inches thick from before to behind, the Hole for the 
Spinal Marrow 2 Inches Diameter, thofe for the Cervical Artery 
(/. f.) i Inch Diameter. Between the oblique and extremity of 
the tranfverfe Procelfes, ’tis 6 Inches. 
The third and fourth Vertebra differ from this, ift. In their The third 
four oblique Procelfes (e.e.) viz. . two by which they are articu and fsurth 
lated with the preceding, and two with the following, which Vertebra:, 
is common to thofe of the Neck, Back and Loins. 2. In their A* 3. A. 4. 
Convex Body before (b. hi) and concave behind (c. c.) where they 
are receiv d by, and do receive the preceding and following, 
which is alfo common to the other Vertebra. ;. In their Eminences 
at the Top (betwixt the oblique ProcefTes) at 4 i Inches di- 
ftance (e.e.) betwixt which there is a Deprelfion in the third, 
and a fmall Protuberance in ’the midft of this Deprelfion in the 
fourth. Their tranfverfe Pro.celfes ( f f.) are 2 Inches broad at 
the Extremity, from which they defcend obliquely 3 Inches, having 
a Protuberance on each fide, betwixt which and the Body of the 
preceding Vertebra (b. h.) does proceed a Branch of the Cervical ™ 
Artery, which it continues to do from betwixt all the other Ver- b 
tebra of the Neck, till it comes to betwixt the Seventh of the 
Neck and firfl: of the Back, where ’tis wholly fpent. Betwixt 
the oblique Procelfes (e. e.) and tranfverfe (/./.) it is 4 Inches. 
The Hole for the Cervical Artery (d.d.) is here Oval. The 
Bodies of thefe Vertebra are thinner below than the former : 
They are 4 Inches in Diameter, being of the fame Dimenfions 
with all the other Vertebra of the Spire, till you come to the Os 
Sacrum. Thofe in the Neck are more flat before, and thofe in 
the Bac.K more Protuberant. Befides thofe Sink’s in the infide 
of the fore-mention’d Protuberances in the Neck, there is like- 
wife a Sinus betwixt the tranfverfe Procelfes of each Vertebra and 
its Body, throughout the whole Spine, for tranfmiffion of the 
Lveral Conjugations of Nerves from the Spinal Marrow. 
R 2 
The 
