262 M E M O I R S ?/^ the 
joined at the head; in the under jaw, there were likewife on each 
fide, four imallcr Inci fores before, then a Imall void fpace, after 
that the tDens CatniiuSy then three larger Incifores, and jafl of 
all four 2)e}Ues Molares^ anfwerable to thole in the upper jaw, 
bat lomewhat fmaller^ in all 48 teeth in both jaws: There were 
leven Vertebrae of the neck, 13 of the back or Thorax^ 6 of the 
loins, 5 of the Oi Sacrum, and zz of the tail, in all 51; the 
firlt Vertebra of the neck, to which the head is fartened, and 
therefore called the Atlas, had two broad tr-mfverfe proceffes, 
but no fpine ; the fecond Vertebra of the neck had a very large 
and thick fpine of a triangular figure 5 and in it was obferved a 
larger I'emicircular Sinus, which was fo deep as to receive into 
its cavity a great part of the firlV Vertebra, by which means the 
articulation was very much flrengthened 5 this Vertebra is called 
dent at a, from its tooth- like protuberance, received into the 
hollow of the firfl: Vertebra, where the Medulla Spinalis paflesj 
this Vertebra had backwards two ^Vrocejjus obliqid fuperiores, 
and two Obliqui inferiores^ the third Vertebra o{ the neck had 
the fame procefles both before and behind, but the fpine here 
was about f of an inch in height, and about the third part of an 
inch thick; and juft at the top feemed to be a little cleft j the 
fourth and fifth VertebcehzA the lame procefies, as the third, and 
the fpine here likcwile was very thick, and clefc to the top, but 
gradually Icflening in height, as alfo thickening; the fixth Ver- 
tebra, befiues the former procefles, had likewile- an acute tranf- 
verle one on each fide, and its Ipme was much /liorter, and more 
acuminated than the former; the leventh Vertebra oi the neck 
had only oblique pvocefles before and none behind, and two 
acute tranfverie procefles, and a very fliort and flmrp Ipine; 
lo that upon holding up the head the fpine of the firft P'er- 
tcbra of the Thorax would touch the top of the fifth Ver- 
tebra of the neck ; thefe Vertebrae are {(^ llrongly and clofcly 
locked into each other, that tho' each of them is large in itfelf, 
yet thus articulated, they do not make full two inches in length ; 
this thicknefs and llrength of the Vertebrae of the neck, and 
likewile of leveral of the Vertebra of the '\tborax and loins, 
and the prominent bony ridge in the Cranium, do lb well lecure 
its neck, back, and head, that fliould it happen to fall to the 
ground, there would be no danger of breaking any of them: The 
firil Icvcn Vertebra of the '/horas have three oblique procefles 
forwards, which run under the hinder oblique procefles of the 
preceeding Vertebra, and have two oblique procefles backwards, 
which nde over tho fe of the fucceedmg ^ >/7e/>/'/2 3 as likewile 
two 
